Remove the IPC to request DemuxerConfigs when config changes

media/base/android/demuxer_android.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_BASE_ANDROID_DEMUXER_ANDROID_H_
 #define MEDIA_BASE_ANDROID_DEMUXER_ANDROID_H_
 
 #include "base/basictypes.h"
 #include "base/time/time.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 class DemuxerAndroidClient;
 struct DemuxerConfigs;
 struct DemuxerData;
 
 // Defines a demuxer with asynchronous operations.
 class MEDIA_EXPORT DemuxerAndroid {
  public:
   virtual ~DemuxerAndroid() {}
 
   // Initializes this demuxer with |client| as the callback handler.
   // Must be called prior to calling any other methods.
   virtual void Initialize(DemuxerAndroidClient* client) = 0;
 
-  // Called to request the current audio/video decoder configurations.
-  virtual void RequestDemuxerConfigs() = 0;
-
   // Called to request additional data from the demuxer.
   virtual void RequestDemuxerData(media::DemuxerStream::Type type) = 0;
 
   // Called to request the demuxer to seek to a particular media time.
   // |is_browser_seek| is true if the renderer is not previously expecting this
   // seek and must coordinate with other regular seeks. Browser seek existence
   // should be hidden as much as possible from the renderer player and web apps.
   // TODO(wolenetz): Instead of doing browser seek, replay cached data since
   // last keyframe. See http://crbug.com/304234.
   virtual void RequestDemuxerSeek(const base::TimeDelta& time_to_seek,
                                   bool is_browser_seek) = 0;
 };
 
 // Defines the client callback interface.
 class MEDIA_EXPORT DemuxerAndroidClient {
  public:
-  // Called in response to RequestDemuxerConfigs() and also when the demuxer has
-  // initialized.
-  //
-  // TODO(scherkus): Perhaps clients should be required to call
-  // RequestDemuxerConfigs() to initialize themselves instead of the demuxer
-  // calling this method without being prompted.
+  // Called when the demuxer has initialized.
   virtual void OnDemuxerConfigsAvailable(const DemuxerConfigs& params) = 0;
 
   // Called in response to RequestDemuxerData().
   virtual void OnDemuxerDataAvailable(const DemuxerData& params) = 0;
 
   // Called in response to RequestDemuxerSeek().
   // If this is in response to a request with |is_browser_seek| set to true,
   // then |actual_browser_seek_time| may differ from the requested
   // |time_to_seek|, and reflects the actual time seeked to by the demuxer.
   // For regular demuxer seeks, |actual_browser_seek_time| is kNoTimestamp() and
   // should be ignored by browser player.
   virtual void OnDemuxerSeekDone(
       base::TimeDelta actual_browser_seek_time) = 0;
 
   // Called whenever the demuxer has detected a duration change.
   virtual void OnDemuxerDurationChanged(base::TimeDelta duration) = 0;
 
  protected:
   virtual ~DemuxerAndroidClient() {}
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_ANDROID_DEMUXER_ANDROID_H_