Replace scoped_ptr with unique_ptr in webrtc/media/

webrtc/media/base/videoframefactory.cc

Index: webrtc/media/base/videoframefactory.cc
diff --git a/webrtc/media/base/videoframefactory.cc b/webrtc/media/base/videoframefactory.cc
index fde58134bd5e1167cefe58c929fbe38cdd59a81b..0e470675b32fc3c710fb759d43d455be2c9e8243 100644
--- a/webrtc/media/base/videoframefactory.cc
+++ b/webrtc/media/base/videoframefactory.cc
@@ -21,7 +21,7 @@ VideoFrame* VideoFrameFactory::CreateAliasedFrame(
     int cropped_input_height,
     int output_width,
     int output_height) const {
-  rtc::scoped_ptr<VideoFrame> cropped_input_frame(CreateAliasedFrame(
+  std::unique_ptr<VideoFrame> cropped_input_frame(CreateAliasedFrame(
       input_frame, cropped_input_width, cropped_input_height));
   if (!cropped_input_frame)
     return nullptr;