Move swap_queue.h to base/

webrtc/base/swap_queue.h

 /*
  *  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.
  */
 
-#ifndef WEBRTC_COMMON_AUDIO_SWAP_QUEUE_H_
-#define WEBRTC_COMMON_AUDIO_SWAP_QUEUE_H_
+#ifndef WEBRTC_BASE_SWAP_QUEUE_H_
+#define WEBRTC_BASE_SWAP_QUEUE_H_
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
 #include "webrtc/base/checks.h"
 #include "webrtc/base/criticalsection.h"
 
 namespace webrtc {
 
 namespace internal {
 
 // (Internal; please don't use outside this file.)

[Henrik Grunell WebRTC, 2016/03/21 12:24:29]

Is this something we want to expose as part of approved code to use outside of
WebRTC?

[terelius, 2016/03/23 10:21:02]

I think "approved" means primarily "approved for use outside of libjingle".
Although it does expose the internal namespace to code outside of WebRTC, we do
the same thing in e.g. base/buffer.h

 template <typename T>
 bool NoopSwapQueueItemVerifierFunction(const T&) {
   return true;
 }
 
 }  // namespace internal
 
 // Functor to use when supplying a verifier function for the queue.
 template <typename T,
           bool (*QueueItemVerifierFunction)(const T&) =
@@ skipping 164 matching lines @@
   size_t num_elements_ GUARDED_BY(crit_queue_) = 0;
 
   // queue_.size() is constant.
   std::vector<T> queue_ GUARDED_BY(crit_queue_);
 
   RTC_DISALLOW_COPY_AND_ASSIGN(SwapQueue);
 };
 
 }  // namespace webrtc
 
-#endif  // WEBRTC_COMMON_AUDIO_SWAP_QUEUE_H_
+#endif  // WEBRTC_BASE_SWAP_QUEUE_H_