[Media] Add a finch trial param for background MediaSource videos

media/blink/webmediaplayer_params.h

 // Copyright 2013 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.
 
 #ifndef MEDIA_BLINK_WEBMEDIAPLAYER_PARAMS_H_
 #define MEDIA_BLINK_WEBMEDIAPLAYER_PARAMS_H_
 
 #include <stdint.h>
 
 #include "base/callback.h"
@@ skipping 42 matching lines @@
       const scoped_refptr<MediaLog>& media_log,
       const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
       const scoped_refptr<base::TaskRunner>& worker_task_runner,
       const scoped_refptr<base::SingleThreadTaskRunner>& compositor_task_runner,
       const Context3DCB& context_3d,
       const AdjustAllocatedMemoryCB& adjust_allocated_memory_cb,
       blink::WebContentDecryptionModule* initial_cdm,
       SurfaceManager* surface_manager,
       base::WeakPtr<MediaObserver> media_observer,
       base::TimeDelta max_keyframe_distance_to_disable_background_video,
+      base::TimeDelta max_keyframe_distance_to_disable_background_video_mse,
       bool enable_instant_source_buffer_gc,
       bool allow_suspend,
       bool embedded_media_experience_enabled);
 
   ~WebMediaPlayerParams();
 
   DeferLoadCB defer_load_cb() const { return defer_load_cb_; }
 
   const scoped_refptr<SwitchableAudioRendererSink>& audio_renderer_sink()
       const {
@@ skipping 30 matching lines @@
   SurfaceManager* surface_manager() const { return surface_manager_; }
 
   base::WeakPtr<MediaObserver> media_observer() const {
     return media_observer_;
   }
 
   base::TimeDelta max_keyframe_distance_to_disable_background_video() const {
     return max_keyframe_distance_to_disable_background_video_;
   }
 
+  base::TimeDelta max_keyframe_distance_to_disable_background_video_mse()
+      const {
+    return max_keyframe_distance_to_disable_background_video_mse_;
+  }
+
   bool enable_instant_source_buffer_gc() const {
     return enable_instant_source_buffer_gc_;
   }
 
   bool allow_suspend() const { return allow_suspend_; }
 
   bool embedded_media_experience_enabled() const {
     return embedded_media_experience_enabled_;
   }
 
  private:
   DeferLoadCB defer_load_cb_;
   scoped_refptr<SwitchableAudioRendererSink> audio_renderer_sink_;
   scoped_refptr<MediaLog> media_log_;
   scoped_refptr<base::SingleThreadTaskRunner> media_task_runner_;
   scoped_refptr<base::TaskRunner> worker_task_runner_;
   scoped_refptr<base::SingleThreadTaskRunner> compositor_task_runner_;
   Context3DCB context_3d_cb_;
   AdjustAllocatedMemoryCB adjust_allocated_memory_cb_;
 
   blink::WebContentDecryptionModule* initial_cdm_;
   SurfaceManager* surface_manager_;
   base::WeakPtr<MediaObserver> media_observer_;
   base::TimeDelta max_keyframe_distance_to_disable_background_video_;
+  base::TimeDelta max_keyframe_distance_to_disable_background_video_mse_;
   bool enable_instant_source_buffer_gc_;
   const bool allow_suspend_;
   const bool embedded_media_experience_enabled_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebMediaPlayerParams);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BLINK_WEBMEDIAPLAYER_PARAMS_H_