Revert of Rename kDisableGestureRequirementForMediaPlayback and make it a test-only flag.

content/test/gpu/gpu_tests/webgl_conformance_integration_test.py

 # Copyright 2016 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 logging
 import os
 import sys
 
 from gpu_tests import gpu_integration_test
 from gpu_tests import path_util
@@ skipping 237 matching lines @@
       extension=extension, context_type=context_type)
     self._CheckTestCompletion()
 
   @classmethod
   def CustomizeOptions(cls):
     assert cls._webgl_version == 1 or cls._webgl_version == 2
     browser_options = cls._finder_options.browser_options
     # --test-type=gpu is used only to suppress the "Google API Keys are missing"
     # infobar, which causes flakiness in tests.
     browser_options.AppendExtraBrowserArgs([
-        '--ignore-autoplay-restrictions',
+        '--disable-gesture-requirement-for-media-playback',
         '--disable-domain-blocking-for-3d-apis',
         '--disable-gpu-process-crash-limit',
         '--test-type=gpu',
         '--enable-experimental-canvas-features',
         # Try disabling the GPU watchdog to see if this affects the
         # intermittent GPU process hangs that have been seen on the
         # waterfall. crbug.com/596622 crbug.com/609252
         '--disable-gpu-watchdog'
     ])
 
@@ skipping 127 matching lines @@
           if webgl_version > 1:
             test += '?webglVersion=' + str(webgl_version)
           test_paths.append(test)
 
     return test_paths
 
 
 def load_tests(loader, tests, pattern):
   del loader, tests, pattern  # Unused.
   return gpu_integration_test.LoadAllTestsInModule(sys.modules[__name__])