Convenience functions to convert RtcEvents to webrtc types.

webrtc/webrtc.gyp

Index: webrtc/webrtc.gyp
diff --git a/webrtc/webrtc.gyp b/webrtc/webrtc.gyp
index 283aa462087dce91eb78730d6082aec04ab090d6..4368dd4c7ef5934a3da7869a4193dea5ade0da13 100644
--- a/webrtc/webrtc.gyp
+++ b/webrtc/webrtc.gyp
@@ -133,6 +133,8 @@
       'conditions': [
         # If enable_protobuf is defined, we want to compile the protobuf
         # and add rtc_event_log.pb.h and rtc_event_log.pb.cc to the sources.
+        # We also want to compile the parsing functions (which do not make
+        # sense without the protobuf).
         ['enable_protobuf==1', {
           'dependencies': [
             'rtc_event_log_proto',
@@ -140,6 +142,10 @@
           'defines': [
             'ENABLE_RTC_EVENT_LOG',
           ],
+          'sources': [
+            'video/rtc_event_log_parser.cc',
+            'video/rtc_event_log_parser.h',
+          ],
         }],
       ],
     },