Reland of Split iOS sdk in to separate targets

webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCVideoSource.mm

 /*
  *  Copyright 2015 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 "RTCVideoSource+Private.h"
 
 #include "webrtc/base/checks.h"
-#include "webrtc/sdk/objc/Framework/Classes/objcvideotracksource.h"
+#include "webrtc/sdk/objc/Framework/Classes/Video/objcvideotracksource.h"
 
 // TODO(magjed): Refactor this class and target ObjcVideoTrackSource only once
 // RTCAVFoundationVideoSource is gone. See http://crbug/webrtc/7177 for more
 // info.
 @implementation RTCVideoSource {
   rtc::scoped_refptr<webrtc::VideoTrackSourceInterface> _nativeVideoSource;
 }
 
 - (instancetype)initWithNativeVideoSource:
     (rtc::scoped_refptr<webrtc::VideoTrackSourceInterface>)nativeVideoSource {
@@ skipping 26 matching lines @@
       ->OnOutputFormatRequest(width, height, fps);
 }
 
 #pragma mark - Private
 
 - (rtc::scoped_refptr<webrtc::VideoTrackSourceInterface>)nativeVideoSource {
   return _nativeVideoSource;
 }
 
 @end