Move RtcEventLog object from inside VoiceEngine to Call.

webrtc/call/rtc_event_log.h

Index: webrtc/call/rtc_event_log.h
diff --git a/webrtc/call/rtc_event_log.h b/webrtc/call/rtc_event_log.h
index 027f6867c6fea91d465c4e31718f6cc8b46d9d83..56cebca0ebda16aa56a92cb2f3647035a87ac909 100644
--- a/webrtc/call/rtc_event_log.h
+++ b/webrtc/call/rtc_event_log.h
@@ -50,7 +50,13 @@ class RtcEventLog {
 
   // Starts logging until either the 10 minute timer runs out or the StopLogging
   // function is called. The RtcEventLog takes ownership of the supplied
-  // rtc::PlatformFile.
+  // rtc::PlatformFile. The max_size_bytes argument is ignored, it is added here
+  // for future use.
+  virtual bool StartLogging(rtc::PlatformFile log_file,
+                            int64_t max_size_bytes) {
+    return StartLogging(log_file);
+  }
+
   virtual bool StartLogging(rtc::PlatformFile log_file) = 0;
 
   virtual void StopLogging() = 0;