Added test expectations for context_lost and suppressed flaky failure.

BUG=392891

Review URL: https://codereview.chromium.org/450493002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@287868 0039d316-1c4b-4281-b951-d872f2087c98

content/test/gpu/gpu_tests/context_lost.py

@@ -4,6 +4,8 @@
 import os
 import time
 
+import context_lost_expectations
+
 from telemetry import benchmark as benchmark_module
 from telemetry.core import exceptions
 from telemetry.core import util
@@ -283,6 +285,10 @@ class WebGLContextLostFromSelectElementPage(page.Page):
 class ContextLost(benchmark_module.Benchmark):
   enabled = True
   test = _ContextLostValidator
+
+  def CreateExpectations(self, page_set):
+    return context_lost_expectations.ContextLostExpectations()
+
   # For the record, this would have been another way to get the pages
   # to repeat. pageset_repeat would be another option.
   # options = {'page_repeat': 5}

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 telemetry.page import test_expectations
+
+# Valid expectation conditions are:
+#
+# Operating systems:
+#     win, xp, vista, win7, mac, leopard, snowleopard, lion, mountainlion,
+#     linux, chromeos, android
+#
+# GPU vendors:
+#     amd, arm, broadcom, hisilicon, intel, imagination, nvidia, qualcomm,
+#     vivante
+#
+# Specific GPUs can be listed as a tuple with vendor name and device ID.
+# Examples: ('nvidia', 0x1234), ('arm', 'Mali-T604')
+# Device IDs must be paired with a GPU vendor.
+
+class ContextLostExpectations(test_expectations.TestExpectations):
+  def SetExpectations(self):
+    # Sample Usage:
+    # self.Fail('ContextLost.WebGLContextLostFromGPUProcessExit',
+    #     ['mac', 'amd', ('nvidia', 0x1234)], bug=123)
+
+    self.Fail('GpuCrash.GPUProcessCrashesExactlyOnce',
+              ['win'], bug=392891)