Add return-by-value implementations of blink::WebMediaPlayer::buffered()

content/renderer/media/android/media_source_delegate.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 CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_SOURCE_DELEGATE_H_
 #define CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_SOURCE_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 50 matching lines @@
   // Initialize the MediaSourceDelegate. |media_source| will be owned by
   // this object after this call.
   void InitializeMediaSource(
       const MediaSourceOpenedCB& media_source_opened_cb,
       const media::Demuxer::NeedKeyCB& need_key_cb,
       const media::SetDecryptorReadyCB& set_decryptor_ready_cb,
       const UpdateNetworkStateCB& update_network_state_cb,
       const DurationChangeCB& duration_change_cb);
 
   const blink::WebTimeRanges& Buffered();
+  blink::WebTimeRanges Buffered() const;
   size_t DecodedFrameCount() const;
   size_t DroppedFrameCount() const;
   size_t AudioDecodedByteCount() const;
   size_t VideoDecodedByteCount() const;
 
   // In MSE case, calls ChunkDemuxer::CancelPendingSeek(). Also sets the
   // expectation that a regular seek will be arriving and to trivially finish
   // any browser seeks that may be requested prior to the regular seek.
   void CancelPendingSeek(const base::TimeDelta& seek_time);
 
@@ skipping 161 matching lines @@
   base::WeakPtrFactory<MediaSourceDelegate> main_weak_factory_;
   base::WeakPtrFactory<MediaSourceDelegate> media_weak_factory_;
   base::WeakPtr<MediaSourceDelegate> main_weak_this_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaSourceDelegate);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_ANDROID_MEDIA_SOURCE_DELEGATE_H_