ObjC: Include additional files in umbrella header.

webrtc/sdk/objc/Framework/Classes/PeerConnection/RTCVideoCodecH264.mm

 /*
  *  Copyright 2017 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 "WebRTC/RTCVideoCodecH264.h"
 
 #include <vector>
 
 #import "RTCVideoCodec+Private.h"
 #import "WebRTC/RTCVideoCodec.h"
-#import "WebRTC/RTCVideoFrame.h"
-#import "WebRTC/RTCVideoFrameBuffer.h"
 
 #include "webrtc/rtc_base/timeutils.h"
 #include "webrtc/sdk/objc/Framework/Classes/Video/objc_frame_buffer.h"
 #include "webrtc/system_wrappers/include/field_trial.h"
 
 const char kHighProfileExperiment[] = "WebRTC-H264HighProfile";
 static NSString *kLevel31ConstrainedHigh = @"640c1f";
 static NSString *kLevel31ConstrainedBaseline = @"42e01f";
 
 bool IsHighProfileEnabled() {
@@ skipping 63 matching lines @@
 - (id<RTCVideoDecoder>)createDecoder:(RTCVideoCodecInfo *)info {
   return [[RTCVideoDecoderH264 alloc] init];
 }
 
 - (NSArray<RTCVideoCodecInfo *> *)supportedCodecs {
   NSString *codecName = [NSString stringWithUTF8String:cricket::kH264CodecName];
   return @[ [[RTCVideoCodecInfo alloc] initWithPayload:0 name:codecName parameters:@{}] ];
 }
 
 @end