Bugfix to stop chrome from crashing.

talk/media/webrtc/webrtcvoiceengine.cc

 /*
  * libjingle
  * Copyright 2004 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 1135 matching lines @@
     if (voe_wrapper_->base()->audio_processing()->StopDebugRecording() !=
         webrtc::AudioProcessing::kNoError) {
       LOG_RTCERR0(StopDebugRecording);
     }
     is_dumping_aec_ = false;
   }
 }
 
 bool WebRtcVoiceEngine::StartRtcEventLog(rtc::PlatformFile file) {
   RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
-  return voe_wrapper_->codec()->GetEventLog()->StartLogging(file);
+  webrtc::RtcEventLog* event_log = voe_wrapper_->codec()->GetEventLog();
+  if (event_log) {
+    return event_log->StartLogging(file);
+  }
+  LOG_RTCERR0(StartRtcEventLog);
+  return false;
 }
 
 void WebRtcVoiceEngine::StopRtcEventLog() {
   RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
-  voe_wrapper_->codec()->GetEventLog()->StopLogging();
+  webrtc::RtcEventLog* event_log = voe_wrapper_->codec()->GetEventLog();
+  if (event_log) {
+    event_log->StopLogging();
+    return;
+  }
+  LOG_RTCERR0(StopRtcEventLog);
 }
 
 int WebRtcVoiceEngine::CreateVoEChannel() {
   RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
   return voe_wrapper_->base()->CreateChannel(voe_config_);
 }
 
 class WebRtcVoiceMediaChannel::WebRtcAudioSendStream
     : public AudioRenderer::Sink {
  public:
@@ skipping 1388 matching lines @@
     }
   } else {
     LOG(LS_INFO) << "Stopping playout for channel #" << channel;
     engine()->voe()->base()->StopPlayout(channel);
   }
   return true;
 }
 }  // namespace cricket
 
 #endif  // HAVE_WEBRTC_VOICE