Adding slightly clearer separation between SW and EmbeddedWorker (still incomplete)

content/browser/service_worker/embedded_worker_registry.cc

Index: content/browser/service_worker/embedded_worker_registry.cc
diff --git a/content/browser/service_worker/embedded_worker_registry.cc b/content/browser/service_worker/embedded_worker_registry.cc
index 65bee2a3bded49fb3177b5f0db40d471c78e244b..fab3172635758fdcfba0f46817c1197de80e21d8 100644
--- a/content/browser/service_worker/embedded_worker_registry.cc
+++ b/content/browser/service_worker/embedded_worker_registry.cc
@@ -67,6 +67,19 @@ void EmbeddedWorkerRegistry::OnWorkerStopped(
   found->second->OnStopped();
 }
 
+void EmbeddedWorkerRegistry::OnSendMessageToBrowser(
+    int embedded_worker_id, const IPC::Message& message) {
+  WorkerInstanceMap::iterator found = worker_map_.find(embedded_worker_id);
+  if (found == worker_map_.end()) {
+    LOG(ERROR) << "Worker " << embedded_worker_id << " not registered";
+    return;
+  }
+  // TODO(kinuko): Filter out unexpected messages here and uncomment below
+  // when we actually define messages that are to be sent from child process
+  // to the browser via this channel. (We don't have any yet)
+  // found->second->OnMessageReceived(message);
+}
+
 void EmbeddedWorkerRegistry::AddChildProcessSender(
     int process_id, IPC::Sender* sender) {
   process_sender_map_[process_id] = sender;