Reland of name kDisableGestureRequirementForMediaPlayback and make it a test-only flag.

content/public/common/content_switches.cc

 // Copyright (c) 2012 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.
 
 #include "build/build_config.h"
 #include "content/public/common/content_switches.h"
 #include "media/media_features.h"
 
 namespace switches {
 
@@ skipping 119 matching lines @@
 
 // Disable FileSystem API.
 const char kDisableFileSystem[]             = "disable-file-system";
 
 // Disable 3D inside of flapper.
 const char kDisableFlash3d[]                = "disable-flash-3d";
 
 // Disable Stage3D inside of flapper.
 const char kDisableFlashStage3d[]           = "disable-flash-stage3d";
 
-// Disable user gesture requirement for media playback.
-const char kDisableGestureRequirementForMediaPlayback[] =
-    "disable-gesture-requirement-for-media-playback";
-
 // Disable user gesture requirement for presentation.
 const char kDisableGestureRequirementForPresentation[] =
     "disable-gesture-requirement-for-presentation";
 
 // Disables GPU hardware acceleration.  If software renderer is not in place,
 // then the GPU process won't launch.
 const char kDisableGpu[]                    = "disable-gpu";
 
 // Prevent the compositor from using its GPU implementation.
 const char kDisableGpuCompositing[]         = "disable-gpu-compositing";
@@ skipping 927 matching lines @@
 // the given directory. Used primarily to gather samples for IPC fuzzing.
 const char kIpcDumpDirectory[] = "ipc-dump-directory";
 
 // Specifies the testcase used by the IPC fuzzer.
 const char kIpcFuzzerTestcase[] = "ipc-fuzzer-testcase";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches