The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/761e2ddaa6d3aea34848809174a250291b2615a5

commit 761e2ddaa6d3aea34848809174a250291b2615a5
Author: kbr <kbr@chromium.org>
Date: Wed Oct 05 02:43:54 2016

Move special DEPTH_STENCIL attachment logic from command buffers to WebGL1

(piman's https://codereview.chromium.org/2372953002/ , conflicts resolved)

GL_DEPTH_STENCIL_ATTACHMENT is not a real attachment in ES3, but instead is
translated to separate DEPTH and STENCIL attachment. However, WebGL1 has a
concept of a separate DEPTH_STENCIL attachment that is mutually exclusive with
DEPTH and STENCIL attachments.
This CL moves the logic that tracks the separate DEPTH_STENCIL attachment to the
WebGL side, so that the ES3 implementation can consistently track which
attachment is active, in accordance to ES3 rules.

BUG= 630568 
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
TBR=zmo@chromium.org

Review-Url: https://codereview.chromium.org/2389363002
Cr-Commit-Position: refs/heads/master@{#423054}

[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/gpu/command_buffer/common/gles2_cmd_utils.cc
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/gpu/command_buffer/service/context_group.cc
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/gpu/command_buffer/service/framebuffer_manager.cc
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/gpu/command_buffer/service/framebuffer_manager.h
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/gpu/command_buffer/service/framebuffer_manager_unittest.cc
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/gpu/command_buffer/service/gles2_cmd_decoder.cc
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.cc
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/gpu/command_buffer/service/gles2_cmd_decoder_unittest_framebuffers.cc
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/gpu/command_buffer/service/texture_manager_unittest.cc
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/third_party/WebKit/Source/modules/webgl/WebGL2RenderingContextBase.cpp
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/third_party/WebKit/Source/modules/webgl/WebGLFramebuffer.cpp
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/third_party/WebKit/Source/modules/webgl/WebGLFramebuffer.h
[modify] https://crrev.com/761e2ddaa6d3aea34848809174a250291b2615a5/third_party/WebKit/Source/modules/webgl/WebGLRenderingContextBase.cpp

Moving owner to piman as the author of the patch.