Add RTC_ prefix to (D)CHECKs and related macros.

webrtc/video/encoded_frame_callback_adapter.cc

 /*
  *  Copyright (c) 2013 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.
  */
 
 #include "webrtc/video/encoded_frame_callback_adapter.h"
 
 #include "webrtc/base/checks.h"
 #include "webrtc/modules/video_coding/main/source/encoded_frame.h"
 
 namespace webrtc {
 namespace internal {
 
 EncodedFrameCallbackAdapter::EncodedFrameCallbackAdapter(
     EncodedFrameObserver* observer) : observer_(observer) {
 }
 
 EncodedFrameCallbackAdapter::~EncodedFrameCallbackAdapter() {}
 
 int32_t EncodedFrameCallbackAdapter::Encoded(
     const EncodedImage& encodedImage,
     const CodecSpecificInfo* codecSpecificInfo,
     const RTPFragmentationHeader* fragmentation) {
-  DCHECK(observer_ != nullptr);
+  RTC_DCHECK(observer_ != nullptr);
   FrameType frame_type =
         VCMEncodedFrame::ConvertFrameType(encodedImage._frameType);
   const EncodedFrame frame(encodedImage._buffer,
                            encodedImage._length,
                            frame_type);
   observer_->EncodedFrameCallback(frame);
   return 0;
 }
 
 }  // namespace internal
 }  // namespace webrtc