Enable VP9 in MP4 by default

media/base/media_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 "media/base/media_switches.h"
 #include "base/command_line.h"
 #include "build/build_config.h"
 #include "ppapi/features/features.h"
 
 namespace switches {
@@ skipping 120 matching lines @@
 // Allows clients to override the threshold for when the media renderer will
 // declare the underflow state for the video stream when audio is present.
 // TODO(dalecurtis): Remove once experiments for http://crbug.com/470940 finish.
 const char kVideoUnderflowThresholdMs[] = "video-underflow-threshold-ms";
 
 // Disables the new rendering algorithm for webrtc, which is designed to improve
 // the rendering smoothness.
 const char kDisableRTCSmoothnessAlgorithm[] =
     "disable-rtc-smoothness-algorithm";
 
-// Enables demuxing of vp9 in mp4. Note that this flag will not have any effect
-// if MP4 demuxing is not enabled in the build.
-const char kEnableVp9InMp4[] = "enable-vp9-in-mp4";
-
 // Force media player using SurfaceView instead of SurfaceTexture on Android.
 const char kForceVideoOverlays[] = "force-video-overlays";
 
 // Allows explicitly specifying MSE audio/video buffer sizes.
 // Default values are 150M for video and 12M for audio.
 const char kMSEAudioBufferSizeLimit[] = "mse-audio-buffer-size-limit";
 const char kMSEVideoBufferSizeLimit[] = "mse-video-buffer-size-limit";
 
 // Ignores all autoplay restrictions. It will ignore the current autoplay policy
 // and all restrictions such as playback in a background tab. It should only be
@@ skipping 143 matching lines @@
 
 // The default value is platform dependent.
 #if defined(OS_ANDROID)
   return switches::autoplay::kUserGestureRequiredPolicy;
 #else
   return switches::autoplay::kNoUserGestureRequiredPolicy;
 #endif
 }
 
 }  // namespace media