During this skia roll:
https://chromium-review.googlesource.com/#/c/487363/

https://build.chromium.org/p/tryserver.chromium.android/builders/android_optional_gpu_tests_rel/builds/4442 failed,
but https://build.chromium.org/p/tryserver.chromium.android/builders/android_optional_gpu_tests_rel/builds/4444 passed for the same patchset.

Nothing obvious in the log:
[704/855] gpu_tests.webgl_conformance_integration_test.WebGLConformanceIntegrationTest.WebglConformance_conformance_textures_image_bitmap_from_video_tex_2d_rgb_rgb_unsigned_byte failed unexpectedly 11.9072s:
  
  Traceback (most recent call last):
    _RunGpuTest at content/test/gpu/gpu_tests/gpu_integration_test.py:73
      self.RunActualGpuTest(url, *args)
    RunActualGpuTest at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:203
      getattr(self, test_name)(test_path, *args[1:])
    _RunConformanceTest at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:217
      self._CheckTestCompletion()
    _CheckTestCompletion at content/test/gpu/gpu_tests/webgl_conformance_integration_test.py:213
      self.fail(self._WebGLTestMessages(self.tab))
    fail at /usr/lib/python2.7/unittest/case.py:412
      raise self.failureException(msg)
  AssertionError: shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  All createImageBitmap promises are resolved
  *** Error compiling VERTEX_SHADER '[object WebGLShader]':
  *** Error compiling FRAGMENT_SHADER '[object WebGLShader]':
  Error in compiling shader
  Testing texImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texSubImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texSubImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texSubImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texSubImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  All createImageBitmap promises are resolved
  *** Error: unable to create shader 'attribute vec4 vPosition;
  attribute vec2 texCoord0;
  varying vec2 texCoord;
  void main() {
      gl_Position = vPosition;
      texCoord = texCoord0;
  }'
  *** Error: unable to create shader 'precision mediump float;
  uniform sampler2D tex;
  varying vec2 texCoord;
  void main() {
      gl_FragData[0] = texture2D(tex, texCoord);
  }'
  Error in compiling shader
  Testing texImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was CONTEXT_LOST_WEBGL : should be no errors
  FAIL getError expected: NO_ERROR. Was CONTEXT_LOST_WEBGL : should be no errors
  Testing texSubImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  All createImageBitmap promises are resolved
  *** Error: unable to create shader 'attribute vec4 vPosition;
  attribute vec2 texCoord0;
  varying vec2 texCoord;
  void main() {
      gl_Position = vPosition;
      texCoord = texCoord0;
  }'
  *** Error: unable to create shader 'precision mediump float;
  uniform sampler2D tex;
  varying vec2 texCoord;
  void main() {
      gl_FragData[0] = texture2D(tex, texCoord);
  }'
  Error in compiling shader
  Testing texImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  
  Locals:
    msg : u"shouldBe 255,0,0\nat (8, 8) expected: 255,0,0 was 0,0,0\nAll createImageBitmap promises are resolved\n*** Error compiling VERTEX_SHADER '[object WebGLShader]':\n*** Error compiling FRAGMENT_SHADER '[object WebGLShader]':\nError in compiling shader\nTesting texImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D\nStarts uploading the image into texture\nUploading texture completed\nChecking bottom\nFAIL shouldBe 255,0,0\nat (8, 8) expected: 255,0,0 was 0,0,0\nshouldBe 255,0,0\nat (2 ... multiplyAlpha=false, bindingTarget=TEXTURE_2D\nStarts uploading the image into texture\nUploading texture completed\nChecking top\nshouldBe 255,0,0\nat (8, 24) expected: 255,0,0 was 0,0,0\nFAIL shouldBe 255,0,0\nat (8, 24) expected: 255,0,0 was 0,0,0\nChecking bottom\nshouldBe 0,255,0\nat (8, 8) expected: 0,255,0 was 0,0,0\nFAIL shouldBe 0,255,0\nat (8, 8) expected: 0,255,0 was 0,0,0\nshouldBe 0,255,0\nat (24, 8) expected: 0,255,0 was 0,0,0\nFAIL shouldBe 0,255,0\nat (24, 8) expected: 0,255,0 was 0,0,0\n" (truncated)
  
  No minidump paths to symbolize
  Restarting browser due to unexpected test failure
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( ps | grep -F org.chromium.chrome; echo "PIPESTATUS: ${PIPESTATUS[@]}" );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( ls /root );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( cd /sys/devices/system/cpu && for CPU in cpu0 cpu1 cpu2 cpu3 cpu4 cpu5; do test -e "${CPU}/cpufreq/scaling_available_governors" && grep -q ondemand ${CPU}/cpufreq/scaling_available_governors && test -e "$CPU/cpufreq/scaling_governor" && echo ondemand > "$CPU/cpufreq/scaling_governor"; echo -n "%~%$?%~%"; done );echo %$?'
  Successfully set cpufreq/scaling_governor to 'ondemand' on: cpu0 cpu1 cpu2 cpu3 cpu4 cpu5
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( cd /sys/devices/system/cpu && for CPU in cpu0 cpu1 cpu2 cpu3 cpu4 cpu5; do cat "$CPU/online"; echo -n "%~%$?%~%"; done );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( ps | grep -F org.chromium.chrome; echo "PIPESTATUS: ${PIPESTATUS[@]}" );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( am force-stop org.chromium.chrome );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f forward --remove tcp:51562
  Starting browser, attempt 1 of 3
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( ps | grep -F org.chromium.chrome; echo "PIPESTATUS: ${PIPESTATUS[@]}" );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( ls /root );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( test -e /data/data/org.chromium.chrome/ );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( TZ=utc ls -a -l /data/data/org.chromium.chrome/ );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( rm -r /data/data/org.chromium.chrome/app_chrome /data/data/org.chromium.chrome/app_dex /data/data/org.chromium.chrome/app_download_internal /data/data/org.chromium.chrome/app_tabs /data/data/org.chromium.chrome/app_textures /data/data/org.chromium.chrome/cache /data/data/org.chromium.chrome/code_cache /data/data/org.chromium.chrome/files /data/data/org.chromium.chrome/shared_prefs );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f root
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f wait-for-device
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( test -d /sdcard );echo %$?'
  condition 'sd_card_ready' met (0.1s)
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( pm path android );echo %$?'
  condition 'pm_ready' met (0.8s)
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( getprop sys.boot_completed );echo %$?'
  condition 'boot_completed' met (0.9s)
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( su 0 ls /root && ! ls /root );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( cd /sys/devices/system/cpu && for CPU in cpu0 cpu1 cpu2 cpu3 cpu4 cpu5; do test -e "${CPU}/cpufreq/scaling_available_governors" && grep -q performance ${CPU}/cpufreq/scaling_available_governors && test -e "$CPU/cpufreq/scaling_governor" && echo performance > "$CPU/cpufreq/scaling_governor"; echo -n "%~%$?%~%"; done );echo %$?'
  Successfully set cpufreq/scaling_governor to 'performance' on: cpu0 cpu1 cpu2 cpu3 cpu4 cpu5
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( ndc resolver flushdefaultif );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f logcat -c
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( ( dumpsys window windows )>/data/local/tmp/temp_file-4c52d5bf3f21b );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f pull /data/local/tmp/temp_file-4c52d5bf3f21b /b/swarm_slave/w/itIOSai9/tmpeLDzgH/tmp_ReadFileWithPull
  Trying to dismiss Error dialog for org.chromium.chrome
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell 'rm -f /data/local/tmp/temp_file-4c52d5bf3f21b'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( input keyevent 22 );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( input keyevent 22 );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( input keyevent 66 );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( ( dumpsys window windows )>/data/local/tmp/temp_file-7c889e2a9ce92 );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f pull /data/local/tmp/temp_file-7c889e2a9ce92 /b/swarm_slave/w/itIOSai9/tmpqVDesr/tmp_ReadFileWithPull
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell 'rm -f /data/local/tmp/temp_file-7c889e2a9ce92'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( ( dumpsys window windows )>/data/local/tmp/temp_file-3dd09a6af64d4 );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f pull /data/local/tmp/temp_file-3dd09a6af64d4 /b/swarm_slave/w/itIOSai9/tmpJvRbkJ/tmp_ReadFileWithPull
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell 'rm -f /data/local/tmp/temp_file-3dd09a6af64d4'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( test -e /data/local/chrome-command-line );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( test -e /data/local/tmp/chrome-command-line );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( test -d /data/local/tmp/chrome-command-line );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f push /b/swarm_slave/w/itIOSai9/tmpAbU1F_ /data/local/tmp/chrome-command-line
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( test -e /data/local/tmp/chrome-command-line );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( TZ=utc ls -a -l /data/local/tmp/ );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( cat /data/local/tmp/chrome-command-line );echo %$?'
  Flags now set on the device: ['--no-default-browser-check', '--disable-external-intent-requests', '--proxy-server=socks://localhost:42619', '--enable-gpu-benchmarking', '--disable-search-geolocation-disclosure', '--metrics-recording-only', '--disable-gpu-watchdog', '--disable-domain-blocking-for-3d-apis', '--ignore-certificate-errors', '--disable-component-extensions-with-background-pages', '--disable-gesture-requirement-for-media-playback', '--disable-gpu-process-crash-limit', '--disable-default-apps', '--disable-fre', '--enable-net-benchmarking', '--js-flags=--expose-gc', '--no-first-run', '--test-type=gpu', '--enable-experimental-canvas-features', '--enable-logging=stderr', '--enable-remote-debugging', '--disable-background-networking']
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( am start -W -d about:blank -n org.chromium.chrome/com.google.android.apps.chrome.Main );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f forward --no-rebind tcp:35456 localabstract:chrome_devtools_remote
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( rm -f /data/local/tmp/chrome-command-line );echo %$?'
  [host]> /b/swarm_slave/w/ir/third_party/catapult/devil/bin/deps/linux2/x86_64/bin/adb -s 00c4dfd78149a74f shell '( test -e /data/local/tmp/chrome-command-line );echo %$?'
  Flags now set on the device: []
  OS: android M
  Model: Nexus 5X
  GPU device 0: VENDOR = 0x0 (Qualcomm), DEVICE = 0x0 (Adreno (TM) 418)
  GPU Attributes:
    amd_switchable      : False
    basic_info_state    : 1
    context_info_state  : 1
    direct_rendering    : True
    driver_date         : 
    driver_vendor       : 
    driver_version      : 127.0
    encrypted_only      : False
    gl_extensions       : GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_sync GL_OES_vertex_half_float GL_OES_framebuffer_object GL_OES_rgb8_rgba8 GL_OES_compressed_ETC1_RGB8_texture GL_AMD_compressed_ATC_texture GL_KHR_texture_compression_astc_ldr GL_OES_texture_npot GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_OES_texture_3D GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_QCOM_alpha_test GL_OES_depth24 GL_OES_packed_depth_stencil GL_OES_depth_texture GL_OES_depth_texture_cube_map GL_EXT_sRGB GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_EXT_texture_type_2_10_10_10_REV GL_EXT_texture_sRGB_decode GL_OES_element_index_uint GL_EXT_copy_image GL_EXT_geometry_shader GL_EXT_tessellation_shader GL_OES_texture_stencil8 GL_EXT_shader_io_blocks GL_OES_shader_image_atomic GL_OES_sample_variables GL_EXT_texture_border_clamp GL_EXT_multisampled_render_to_texture GL_OES_shader_multisample_interpolation GL_EXT_texture_cube_map_array GL_EXT_draw_buffers_indexed GL_EXT_gpu_shader5 GL_EXT_robustness GL_EXT_texture_buffer GL_OES_texture_storage_multisample_2d_array GL_OES_sample_shading GL_OES_get_program_binary GL_EXT_debug_label GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent GL_QCOM_tiled_rendering GL_ANDROID_extension_pack_es31a GL_EXT_primitive_bounding_box GL_OES_standard_derivatives GL_OES_vertex_array_object GL_EXT_disjoint_timer_query GL_KHR_debug GL_EXT_YUV_target GL_EXT_sRGB_write_control GL_EXT_texture_norm16 GL_EXT_discard_framebuffer GL_OES_surfaceless_context GL_OVR_multiview GL_OVR_multiview2 GL_EXT_texture_sRGB_R8 GL_KHR_no_error GL_EXT_debug_marker OES_EGL_image_external_essl3 GL_OVR_multiview_multisampled_render_to_texture GL_EXT_buffer_storage 
    gl_renderer         : Adreno (TM) 418
    gl_reset_notification_strategy: 33362
    gl_vendor           : Qualcomm
    gl_version          : OpenGL ES 3.1 V@127.0 (GIT@I8366cd0437)
    gl_ws_extensions    : 
    gl_ws_vendor        : 
    gl_ws_version       : 
    in_process_gpu      : False
    initialization_time : 0.08737
    jpeg_decode_accelerator_supported: False
    max_framerate_denominator: 1
    max_framerate_numerator: 30
    max_msaa_samples    : 4
    max_resolution_height: 720
    max_resolution_width: 1280
    min_resolution_height: 0
    min_resolution_width: 0
    optimus             : False
    passthrough_cmd_decoder: False
    pixel_shader_version: 3.10
    process_crash_count : 0
    profile             : 0
    sandboxed           : False
    software_rendering  : False
    supports_overlays   : False
    vertex_shader_version: 3.10
    video_decode_accelerator_flags: 55
  Feature Status:
    2d_canvas           : enabled
    flash_3d            : enabled
    flash_stage3d       : enabled
    flash_stage3d_baseline: enabled
    gpu_compositing     : enabled
    multiple_raster_threads: disabled_off
    native_gpu_memory_buffers: disabled_software
    rasterization       : enabled
    video_decode        : enabled
    video_encode        : enabled
    vpx_decode          : enabled
    webgl               : enabled
    webgl2              : enabled
  Driver Bug Workarounds:
    broken_egl_image_ref_counting
    clear_uniforms_before_first_program_use
    disable_blend_equation_advanced
    disable_discard_framebuffer
    disable_framebuffer_cmaa
    disable_program_caching_for_transform_feedback
    force_cube_map_positive_x_allocation
    max_copy_texture_chromium_size_1048576
    max_texture_size_limit_4096
    scalarize_vec_and_mat_constructor_args
    unbind_attachments_on_bound_render_fbo_delete
    unbind_egl_context_to_flush_driver_caches
    use_virtualized_gl_contexts
    wake_up_gpu_before_drawing
  Started browser successfully.
  Traceback (most recent call last):
    File "/b/swarm_slave/w/ir/third_party/catapult/telemetry/telemetry/testing/serially_executed_browser_test_case.py", line 194, in <lambda>
      return lambda self: based_method(self, *args)
    File "/b/swarm_slave/w/ir/content/test/gpu/gpu_tests/gpu_integration_test.py", line 73, in _RunGpuTest
      self.RunActualGpuTest(url, *args)
    File "/b/swarm_slave/w/ir/content/test/gpu/gpu_tests/webgl_conformance_integration_test.py", line 203, in RunActualGpuTest
      getattr(self, test_name)(test_path, *args[1:])
    File "/b/swarm_slave/w/ir/content/test/gpu/gpu_tests/webgl_conformance_integration_test.py", line 217, in _RunConformanceTest
      self._CheckTestCompletion()
    File "/b/swarm_slave/w/ir/content/test/gpu/gpu_tests/webgl_conformance_integration_test.py", line 213, in _CheckTestCompletion
      self.fail(self._WebGLTestMessages(self.tab))
  AssertionError: shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  All createImageBitmap promises are resolved
  *** Error compiling VERTEX_SHADER '[object WebGLShader]':
  *** Error compiling FRAGMENT_SHADER '[object WebGLShader]':
  Error in compiling shader
  Testing texImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texSubImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texSubImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texSubImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  Testing texSubImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  FAIL getError expected: NO_ERROR. Was INVALID_OPERATION : should be no errors
  All createImageBitmap promises are resolved
  *** Error: unable to create shader 'attribute vec4 vPosition;
  attribute vec2 texCoord0;
  varying vec2 texCoord;
  void main() {
      gl_Position = vPosition;
      texCoord = texCoord0;
  }'
  *** Error: unable to create shader 'precision mediump float;
  uniform sampler2D tex;
  varying vec2 texCoord;
  void main() {
      gl_FragData[0] = texture2D(tex, texCoord);
  }'
  Error in compiling shader
  Testing texImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  getError expected: NO_ERROR. Was CONTEXT_LOST_WEBGL : should be no errors
  FAIL getError expected: NO_ERROR. Was CONTEXT_LOST_WEBGL : should be no errors
  Testing texSubImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  All createImageBitmap promises are resolved
  *** Error: unable to create shader 'attribute vec4 vPosition;
  attribute vec2 texCoord0;
  varying vec2 texCoord;
  void main() {
      gl_Position = vPosition;
      texCoord = texCoord0;
  }'
  *** Error: unable to create shader 'precision mediump float;
  uniform sampler2D tex;
  varying vec2 texCoord;
  void main() {
      gl_FragData[0] = texture2D(tex, texCoord);
  }'
  Error in compiling shader
  Testing texImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=false, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=false, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking bottom
  shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 8) expected: 255,0,0 was 0,0,0
  shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (24, 8) expected: 255,0,0 was 0,0,0
  Checking top
  shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 24) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=true, premultiplyAlpha=true, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  Testing texSubImage2D with flipY=true, premultiplyAlpha=false, bindingTarget=TEXTURE_2D
  Starts uploading the image into texture
  Uploading texture completed
  Checking top
  shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  FAIL shouldBe 255,0,0
  at (8, 24) expected: 255,0,0 was 0,0,0
  Checking bottom
  shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (8, 8) expected: 0,255,0 was 0,0,0
  shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0
  FAIL shouldBe 0,255,0
  at (24, 8) expected: 0,255,0 was 0,0,0