Delete IsMutable and IsExclusive methods.

webrtc/media/base/videoframefactory.h

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
 #define WEBRTC_MEDIA_BASE_VIDEOFRAMEFACTORY_H_
 
 #include <memory>
 
+#include "webrtc/common_video/include/i420_buffer_pool.h"
 #include "webrtc/media/base/videoframe.h"
 
 namespace cricket {
 
 struct CapturedFrame;
 class VideoFrame;
 
 // Creates cricket::VideoFrames, or a subclass of cricket::VideoFrame
 // depending on the subclass of VideoFrameFactory.
 class VideoFrameFactory {
@@ skipping 19 matching lines @@
                                          int cropped_input_height,
                                          int output_width,
                                          int output_height) const;
 
   void SetApplyRotation(bool enable) { apply_rotation_ = enable; }
 
  protected:
   bool apply_rotation_;
 
  private:
-  // An internal frame buffer to avoid reallocations. It is mutable because it
+  // An internal pool to avoid reallocations. It is mutable because it
   // does not affect behaviour, only performance.
-  mutable std::unique_ptr<VideoFrame> output_frame_;
+  mutable webrtc::I420BufferPool pool_;
 };
 
 }  // namespace cricket
 
 #endif  // WEBRTC_MEDIA_BASE_VIDEOFRAMEFACTORY_H_