Move RtcEventLog object from inside VoiceEngine to Call.

webrtc/call/rtc_event_log_proxy.h

+/*

[stefan-webrtc, 2016/03/11 10:11:53]

Shouldn't this file live in webrtc/audio? It's only used by audio code.

[the sun, 2016/03/11 10:29:47]

This should even be an internal class in voice_engine/channel.cc. No need for
the lower layers to know about a RtcEventLogProxy - for them it's just an
incarnation of RtcEventLog. voe::Channel just uses it to be able to set the
actual RtcEventLog after construction.

[ivoc, 2016/03/16 17:00:32]

Excellent idea, I will move it there and hide the proxy from the outside world.

+ *  Copyright (c) 2016 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_CALL_RTC_EVENT_LOG_PROXY_H_
+#define WEBRTC_CALL_RTC_EVENT_LOG_PROXY_H_
+
+#include "webrtc/base/criticalsection.h"
+#include "webrtc/base/thread_annotations.h"
+#include "webrtc/call/rtc_event_log.h"
+
+namespace webrtc {
+
+class RtcEventLogProxy {
+ public:
+  RtcEventLogProxy() : event_log_(nullptr) {}
+  RtcEventLogProxy(RtcEventLog* event_log) : event_log_(event_log) {}

[stefan-webrtc, 2016/03/11 10:11:53]

explicit

[ivoc, 2016/03/16 17:00:32]

I removed this constructor in the new code, so this is no longer needed.

+
+  void LogRtpHeader(PacketDirection direction,
+                    MediaType media_type,
+                    const uint8_t* header,
+                    size_t packet_length);
+  void LogRtcpPacket(PacketDirection direction,
+                     MediaType media_type,
+                     const uint8_t* packet,
+                     size_t length);
+  void LogAudioPlayout(uint32_t ssrc);
+  void SetEventLog(RtcEventLog* event_log);
+
+ private:
+  rtc::CriticalSection crit_;
+  RtcEventLog* event_log_ GUARDED_BY(crit_);
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_CALL_RTC_EVENT_LOG_PROXY_H_