Performance fix for H264 RBSP parsing.

webrtc/base/buffer.h

 /*
  *  Copyright 2004 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.
  */
 
 #ifndef WEBRTC_BASE_BUFFER_H_
 #define WEBRTC_BASE_BUFFER_H_
 
+#include <algorithm>
 #include <cstring>
 #include <memory>
 #include <type_traits>
 #include <utility>
 
 #include "webrtc/base/array_view.h"
 #include "webrtc/base/checks.h"
 
 namespace rtc {
 
@@ skipping 308 matching lines @@
   size_t capacity_;
   std::unique_ptr<T[]> data_;
 };
 
 // By far the most common sort of buffer.
 using Buffer = BufferT<uint8_t>;
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_BUFFER_H_