Refactor scaling.

webrtc/common_video/BUILD.gn

 # 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.
 
 import("../build/webrtc.gni")
 
 config("common_video_config") {
   include_dirs = [
     "include",
     "libyuv/include",
   ]
 }
 
 source_set("common_video") {
   sources = [
     "bitrate_adjuster.cc",
     "i420_buffer_pool.cc",
     "include/bitrate_adjuster.h",
     "include/frame_callback.h",
     "include/i420_buffer_pool.h",
     "include/incoming_video_stream.h",
     "include/video_frame_buffer.h",
     "incoming_video_stream.cc",
-    "libyuv/include/scaler.h",
     "libyuv/include/webrtc_libyuv.h",
-    "libyuv/scaler.cc",
     "libyuv/webrtc_libyuv.cc",
     "video_frame.cc",
     "video_frame_buffer.cc",
     "video_render_frames.cc",
     "video_render_frames.h",
   ]
 
   include_dirs = [ "../modules/interface" ]
 
   configs += [ "..:common_config" ]
@@ skipping 24 matching lines @@
   }
 
   if (is_ios || is_mac) {
     sources += [
       "corevideo_frame_buffer.cc",
       "include/corevideo_frame_buffer.h",
     ]
     libs = [ "CoreVideo.framework" ]
   }
 }