Added option to specify a maximum file size when recording an AEC dump.

talk/session/media/channelmanager.cc

Index: talk/session/media/channelmanager.cc
diff --git a/talk/session/media/channelmanager.cc b/talk/session/media/channelmanager.cc
index e7a4b8bddb99e56c561a51b218d8fc74e311d200..bd89a41328cb345728bdec0912b4f230a3242a94 100644
--- a/talk/session/media/channelmanager.cc
+++ b/talk/session/media/channelmanager.cc
@@ -550,9 +550,11 @@ void ChannelManager::OnMessage(rtc::Message* message) {
   }
 }
 
-bool ChannelManager::StartAecDump(rtc::PlatformFile file) {
-  return worker_thread_->Invoke<bool>(
-      Bind(&MediaEngineInterface::StartAecDump, media_engine_.get(), file));
+bool ChannelManager::StartAecDump(rtc::PlatformFile file,
+                                  int64_t max_size_bytes) {
+  return worker_thread_->Invoke<bool>(Bind(&MediaEngineInterface::StartAecDump,
+                                           media_engine_.get(), file,
+                                           max_size_bytes));
 }
 
 void ChannelManager::StopAecDump() {