Remove encoding code from RtcEventLogImpl and use RtcEventLogEncoder instead

webrtc/logging/rtc_event_log/mock/mock_rtc_event_log.h

Index: webrtc/logging/rtc_event_log/mock/mock_rtc_event_log.h
diff --git a/webrtc/logging/rtc_event_log/mock/mock_rtc_event_log.h b/webrtc/logging/rtc_event_log/mock/mock_rtc_event_log.h
index cfe97d55f3e748323d7f3a41a11aaf42093bdb9b..232aba9a38a6943f4b95cc6ef78792d9ebc5f3d3 100644
--- a/webrtc/logging/rtc_event_log/mock/mock_rtc_event_log.h
+++ b/webrtc/logging/rtc_event_log/mock/mock_rtc_event_log.h
@@ -11,6 +11,7 @@
 #ifndef WEBRTC_LOGGING_RTC_EVENT_LOG_MOCK_MOCK_RTC_EVENT_LOG_H_
 #define WEBRTC_LOGGING_RTC_EVENT_LOG_MOCK_MOCK_RTC_EVENT_LOG_H_
 
+#include <memory>
 #include <string>
 
 #include "webrtc/logging/rtc_event_log/rtc_event_log.h"
@@ -32,6 +33,11 @@ class MockRtcEventLog : public RtcEventLog {
 
   MOCK_METHOD0(StopLogging, void());
 
+  MOCK_METHOD1(LogProxy, void(RtcEvent*));
+  virtual void Log(std::unique_ptr<RtcEvent> event) {
+    return LogProxy(event.get());
+  }
+
   MOCK_METHOD1(LogVideoReceiveStreamConfig,
                void(const rtclog::StreamConfig& config));