Send notification about outgoing p2p packets from browser to renderer.

content/renderer/p2p/socket_client.cc

Index: content/renderer/p2p/socket_client.cc
diff --git a/content/renderer/p2p/socket_client.cc b/content/renderer/p2p/socket_client.cc
index e6f5a0f2974a364b35a8ebb71e738791cea200b8..ed3f211cc75a1552c51b7aec423b6eb7dd07bf09 100644
--- a/content/renderer/p2p/socket_client.cc
+++ b/content/renderer/p2p/socket_client.cc
@@ -134,6 +134,19 @@ void P2PSocketClient::DeliverOnIncomingTcpConnection(
   }
 }
 
+void P2PSocketClient::OnSendComplete() {
+  DCHECK(ipc_message_loop_->BelongsToCurrentThread());
+
+  delegate_message_loop_->PostTask(
+      FROM_HERE, base::Bind(&P2PSocketClient::DeliverOnSendComplete, this));
+}
+
+void P2PSocketClient::DeliverOnSendComplete() {
+  DCHECK(delegate_message_loop_->BelongsToCurrentThread());
+  if (delegate_)
+    delegate_->OnSendComplete();
+}
+
 void P2PSocketClient::OnError() {
   DCHECK(ipc_message_loop_->BelongsToCurrentThread());
   state_ = STATE_ERROR;