Added StopAecDump function to PeerConnectionFactory.

talk/app/webrtc/peerconnectionfactory.cc

Index: talk/app/webrtc/peerconnectionfactory.cc
diff --git a/talk/app/webrtc/peerconnectionfactory.cc b/talk/app/webrtc/peerconnectionfactory.cc
index 54a32bc7b8618235762e1840dfc51c5ad3f784fd..b46b4b68d3209bc10099144513548ee6be42c592 100644
--- a/talk/app/webrtc/peerconnectionfactory.cc
+++ b/talk/app/webrtc/peerconnectionfactory.cc
@@ -218,6 +218,11 @@ bool PeerConnectionFactory::StartAecDump(rtc::PlatformFile file) {
   return channel_manager_->StartAecDump(file);
 }
 
+void PeerConnectionFactory::StopAecDump() {
+  RTC_DCHECK(signaling_thread_->IsCurrent());
+  channel_manager_->StopAecDump();
+}
+
 bool PeerConnectionFactory::StartRtcEventLog(rtc::PlatformFile file) {
   RTC_DCHECK(signaling_thread_->IsCurrent());
   return channel_manager_->StartRtcEventLog(file);