Add "--test-type=gpu" to suppress API Keys InfoBar

content/test/gpu/gpu_tests/screenshot_sync.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.
 import os
 import random
 
 import gpu_test_base
 import path_util
 import screenshot_sync_expectations as expectations
 
 from telemetry import benchmark
 from telemetry.page import page_test
 from telemetry.story import story_set as story_set_module
 from telemetry.util import image_util
 
 data_path = os.path.join(
     path_util.GetChromiumSrcDir(), 'content', 'test', 'data', 'gpu')
 
 class ScreenshotSyncValidator(gpu_test_base.ValidatorBase):
   def CustomizeBrowserOptions(self, options):
-    options.AppendExtraBrowserArgs('--force-gpu-rasterization')
+    # --test-type=gpu is used only to suppress the "Google API Keys are missing"
+    # infobar, which causes flakiness in tests.
+    options.AppendExtraBrowserArgs(['--force-gpu-rasterization',
+                                    '--test-type=gpu'])
 
   def ValidateAndMeasurePage(self, page, tab, results):
     if not tab.screenshot_supported:
       raise page_test.Failure('Browser does not support screenshot capture')
 
     def CheckColorMatch(canvasRGB, screenshotRGB):
       for i in range(0, 3):
         if abs(canvasRGB[i] - screenshotRGB[i]) > 1:
           raise page_test.Failure('Color mismatch in component #%d: %d vs %d' %
               (i, canvasRGB[i], screenshotRGB[i]))
@@ skipping 30 matching lines @@
   def Name(cls):
     return 'screenshot_sync'
 
   def _CreateExpectations(self):
     return expectations.ScreenshotSyncExpectations()
 
   def CreateStorySet(self, options):
     ps = story_set_module.StorySet(base_dir=data_path, serving_dirs=[''])
     ps.AddStory(ScreenshotSyncPage(ps, ps.base_dir, self.GetExpectations()))
     return ps