Added functional variants of Buffer::SetData and Buffer::AppendData.

webrtc/base/bufferqueue.cc

 /*
  *  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.
  */
 
 #include "webrtc/base/bufferqueue.h"
 
+#include <algorithm>
+
 namespace rtc {
 
 BufferQueue::BufferQueue(size_t capacity, size_t default_size)
     : capacity_(capacity), default_size_(default_size) {
 }
 
 BufferQueue::~BufferQueue() {
   CritScope cs(&crit_);
 
   for (Buffer* buffer : queue_) {
@@ skipping 52 matching lines @@
     *bytes_written = bytes;
   }
   queue_.push_back(packet);
   if (!was_readable) {
     NotifyReadableForTest();
   }
   return true;
 }
 
 }  // namespace rtc