media: Add experimental feature to enable Mojo CDM on desktop Chromium

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 200 matching lines @@
 // Let video without audio be paused when it is playing in the background.
 const base::Feature kBackgroundVideoPauseOptimization{
     "BackgroundVideoPauseOptimization", base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Make MSE garbage collection algorithm more aggressive when we are under
 // moderate or critical memory pressure. This will relieve memory pressure by
 // releasing stale data from MSE buffers.
 const base::Feature kMemoryPressureBasedSourceBufferGC{
     "MemoryPressureBasedSourceBufferGC", base::FEATURE_DISABLED_BY_DEFAULT};
 
+// On systems where pepper CDMs are enabled, use mojo CDM instead of PPAPI CDM.
+// Note that mojo CDM support is still under development. Some features are
+// still missing and this feature should only be enabled for testing.
+const base::Feature kMojoCdm{"MojoCdm", base::FEATURE_DISABLED_BY_DEFAULT};
+
 // Use the new Remote Playback / media flinging pipeline.
 const base::Feature kNewRemotePlaybackPipeline{
     "NewRemotePlaybackPipeline", base::FEATURE_DISABLED_BY_DEFAULT};
 
 // CanPlayThrough issued according to standard.
 const base::Feature kSpecCompliantCanPlayThrough{
     "CanPlayThrough", base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Use shared block-based buffering for media.
 const base::Feature kUseNewMediaCache{"use-new-media-cache",
@@ skipping 62 matching lines @@
 
 // The default value is platform dependent.
 #if defined(OS_ANDROID)
   return switches::autoplay::kUserGestureRequiredPolicy;
 #else
   return switches::autoplay::kNoUserGestureRequiredPolicy;
 #endif
 }
 
 }  // namespace media