Revert 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/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 {
-  RTC_DCHECK(nativeVideoSource);
-  if (self = [super initWithNativeMediaSource:nativeVideoSource
-                                         type:RTCMediaSourceTypeVideo]) {
-    _nativeVideoSource = nativeVideoSource;
-  }
-  return self;
-}
-
-- (instancetype)initWithNativeMediaSource:
-    (rtc::scoped_refptr<webrtc::MediaSourceInterface>)nativeMediaSource
-                                     type:(RTCMediaSourceType)type {
-  RTC_NOTREACHED();
-  return nil;
-}
-
-- (NSString *)description {
-  NSString *stateString = [[self class] stringForState:self.state];
-  return [NSString stringWithFormat:@"RTCVideoSource( %p ): %@", self, stateString];
-}
-
-- (void)capturer:(RTCVideoCapturer *)capturer didCaptureVideoFrame:(RTCVideoFrame *)frame {
-  static_cast<webrtc::ObjcVideoTrackSource *>(_nativeVideoSource.get())->OnCapturedFrame(frame);
-}
-
-- (void)adaptOutputFormatToWidth:(int)width height:(int)height fps:(int)fps {
-  static_cast<webrtc::ObjcVideoTrackSource *>(_nativeVideoSource.get())
-      ->OnOutputFormatRequest(width, height, fps);
-}
-
-#pragma mark - Private
-
-- (rtc::scoped_refptr<webrtc::VideoTrackSourceInterface>)nativeVideoSource {
-  return _nativeVideoSource;
-}
-
-@end