New method CreateScaledFrame in the VideoFrameFactory interface.

webrtc/media/base/videoframefactory.cc

 /*
  *  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.
  */
 
 #include "webrtc/media/base/videoframefactory.h"
 
 #include <algorithm>
 #include "webrtc/media/base/videocapturer.h"
 
 namespace cricket {
 
+// For backwards compatiblity, default implementation in terms of old methods.
+// TODO(nisse): Delete when Chrome's subclass is updated.
+std::unique_ptr<VideoFrame> VideoFrameFactory::CreateScaledFrame(
+    const CapturedFrame* input_frame,
+    int width,
+    int height) const {
+  return std::unique_ptr<VideoFrame>(CreateAliasedFrame(
+      input_frame, input_frame->width, input_frame->height, width, height));
+}
+
 VideoFrame* VideoFrameFactory::CreateAliasedFrame(
     const CapturedFrame* input_frame,
     int cropped_input_width,
     int cropped_input_height,
     int output_width,
     int output_height) const {
   std::unique_ptr<VideoFrame> cropped_input_frame(CreateAliasedFrame(
       input_frame, cropped_input_width, cropped_input_height));
   if (!cropped_input_frame)
     return nullptr;
@@ skipping 24 matching lines @@
       return NULL;
     }
   } else {
     cropped_input_frame->StretchToFrame(output_frame_.get(), true, true);
     output_frame_->SetTimeStamp(cropped_input_frame->GetTimeStamp());
   }
   return output_frame_->Copy();
 }
 
 }  // namespace cricket