Revert of Replace the remaining scoped_ptr with unique_ptr in webrtc/modules/

webrtc/modules/rtp_rtcp/source/rtcp_packet/transport_feedback.cc

 /*
  *  Copyright (c) 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.
  */
 
@@ skipping 633 matching lines @@
 //    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 //    |         packet chunk          |  recv delta   |  recv delta   |
 //    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 //    .                                                               .
 //    .                                                               .
 //    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 //    |           recv delta          |  recv delta   | zero padding  |
 //    +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 
 // De-serialize packet.
-std::unique_ptr<TransportFeedback> TransportFeedback::ParseFrom(
+rtc::scoped_ptr<TransportFeedback> TransportFeedback::ParseFrom(
     const uint8_t* buffer,
     size_t length) {
-  std::unique_ptr<TransportFeedback> packet(new TransportFeedback());
+  rtc::scoped_ptr<TransportFeedback> packet(new TransportFeedback());
 
   if (length < kMinSizeBytes) {
     LOG(LS_WARNING) << "Buffer too small (" << length
                     << " bytes) to fit a "
                        "FeedbackPacket. Minimum size = " << kMinSizeBytes;
     return nullptr;
   }
 
   RTCPUtility::RtcpCommonHeader header;
   if (!RtcpParseCommonHeader(buffer, length, &header))
@@ skipping 99 matching lines @@
                        "RLE block of size " << rle_chunk->NumSymbols()
                     << " but only " << max_size << " left to read.";
     delete rle_chunk;
     return nullptr;
   }
   return rle_chunk;
 }
 
 }  // namespace rtcp
 }  // namespace webrtc