The following tests
* gpu_tests.context_lost_integration_test.ContextLostIntegrationTest.ContextLost_WebGLUnblockedAfterUserInitiatedReload
* gpu_tests.context_lost_integration_test.ContextLostIntegrationTest.ContextLost_WebGLBlockedAfterJSNavigation
are flaking on two FYI bots:
* Android FYI Release Nexus 9 [1]
* Android FYI Release NVIDIA Shield TV [2]
the failure is more consistent on the NVIDIA Shield TV.

Suspecting build [3], crrev.com/550403: Render lost WebGL contexts as a "sad canvas".

kbr@, could you take a look?

[1] https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Android%20FYI%20Release%20%28Nexus%209%29
[2] https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Android%20FYI%20Release%20%28NVIDIA%20Shield%20TV%29
[3] https://ci.chromium.org/p/chromium/builders/luci.chromium.ci/Android%20FYI%20Release%20%28NVIDIA%20Shield%20TV%29/1471