Fixed flakiness of context_lost tests on GPU bots.
Two failures were observed:
1. If the GPU process crashed between EstablishGpuChannel and
CreateViewCommandBuffer, the channel would never be properly marked
as lost. Now, if CreateViewCommandBuffer fails, mark the
GpuChannelHost as lost on the renderer side. The RenderThreadImpl
will then establish a new connection to the new GPU process.
2. In Issue 308675, support was added to allow Telemetry to navigate
to about:gpucrash, specifically for this test. It turns out that
each navigation from Telemetry was provoking *two* GPU process
crashes. Depending on when they came in, the test would
intermittently receive two lost context events and fail. Squelch
the second debug URL handling in NavigationControllerImpl.
These fix the locally reproducible failures of this test.
BUG=365904
TEST=src/content/test/gpu/run_gpu_test.py context_lost --browser=debug --show-stdout -v --page-filter=WebGLContextLostFromGPUProcessExit --page-repeat=30
Review URL: https://codereview.chromium.org/277113002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@269763 0039d316-1c4b-4281-b951-d872f2087c98
4 files changed