Abort ContextLost.WebGLContextLostFromQuantity if context creation fails.

content/test/gpu/gpu_tests/context_lost_expectations.py

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 from gpu_tests.gpu_test_expectations import GpuTestExpectations
 
 # See the GpuTestExpectations class for documentation.
 
 class ContextLostExpectations(GpuTestExpectations):
   def SetExpectations(self):
@@ skipping 10 matching lines @@
     # Flaky retries aren't working well in this case. Need to shut
     # down the browser between runs. This will be done in the new test
     # harness (http://crbug.com/352807).
     self.Fail('ContextLost.WebGLContextLostFromGPUProcessExit',
               ['win7'], bug=619196)
 
     # Win8 Release and Debug NVIDIA bots.
     self.Skip('ContextLost.WebGLContextLostFromSelectElement',
               ['win8', 'nvidia'], bug=524808)
 
+    # Flaky on Win x64 Debug bot.
+    # Unfortunately we can't identify this separately from the 32-bit bots.
+    # Try marking it flaky to see if this works around the problem.
+    self.Flaky('ContextLost.WebGLContextLostFromQuantity',
+               ['win', 'debug'], bug=628697)
+
     # Flaky on Mac 10.7 and 10.8 resulting in crashes during browser
     # startup, so skip this test in those configurations.
     self.Skip('ContextLost.WebGLContextLostFromSelectElement',
               ['mountainlion', 'debug'], bug=497411)
     self.Skip('ContextLost.WebGLContextLostFromSelectElement',
               ['lion', 'debug'], bug=498149)
 
     # 'Browser must support tab control' raised on Android
     self.Fail('GpuCrash.GPUProcessCrashesExactlyOnce',
               ['android'], bug=609629)
     self.Fail('ContextLost.WebGLContextLostFromGPUProcessExit',
               ['android'], bug=609629)
     self.Fail('ContextLost.WebGLContextLostInHiddenTab',
               ['android'], bug=609629)
 
     # Nexus 6
     # The Nexus 6 times out on these tests while waiting for the JS to complete
     self.Fail('ContextLost.WebGLContextLostFromLoseContextExtension',
               ['android', ('qualcomm', 'Adreno (TM) 420')], bug=611906)
     self.Fail('ContextLost.WebGLContextLostFromQuantity',
               ['android', ('qualcomm', 'Adreno (TM) 420')], bug=611906)