ServiceWorker: Introduce ServiceWorkerMessageEvent to replace MessageEvent (2/3).

content/child/service_worker/service_worker_dispatcher.cc

Index: content/child/service_worker/service_worker_dispatcher.cc
diff --git a/content/child/service_worker/service_worker_dispatcher.cc b/content/child/service_worker/service_worker_dispatcher.cc
index dfbcfc18f6c06fb4e2e20fd6796f1fa9e81b3b64..6de57e5f68171567c40b277368abc4ef565a5212 100644
--- a/content/child/service_worker/service_worker_dispatcher.cc
+++ b/content/child/service_worker/service_worker_dispatcher.cc
@@ -616,19 +616,15 @@ void ServiceWorkerDispatcher::OnSetControllerServiceWorker(
 }
 
 void ServiceWorkerDispatcher::OnPostMessage(
-    int thread_id,
-    int provider_id,
-    const base::string16& message,
-    const std::vector<TransferredMessagePort>& sent_message_ports,
-    const std::vector<int>& new_routing_ids) {
+    const ServiceWorkerMsg_MessageToDocument_Params& params) {
   // Make sure we're on the main document thread. (That must be the only
   // thread we get this message)
   DCHECK(ChildThreadImpl::current());
-  TRACE_EVENT1("ServiceWorker",
-               "ServiceWorkerDispatcher::OnPostMessage",
-               "Thread ID", thread_id);
+  TRACE_EVENT1("ServiceWorker", "ServiceWorkerDispatcher::OnPostMessage",
+               "Thread ID", params.thread_id);
 
-  ProviderClientMap::iterator found = provider_clients_.find(provider_id);
+  ProviderClientMap::iterator found =
+      provider_clients_.find(params.provider_id);
   if (found == provider_clients_.end()) {
     // For now we do no queueing for messages sent to nonexistent / unattached
     // client.
@@ -636,11 +632,13 @@ void ServiceWorkerDispatcher::OnPostMessage(
   }
 
   blink::WebMessagePortChannelArray ports =
-      WebMessagePortChannelImpl::CreatePorts(sent_message_ports,
-                                             new_routing_ids,
+      WebMessagePortChannelImpl::CreatePorts(params.message_ports,
+                                             params.new_routing_ids,
                                              base::MessageLoopProxy::current());
 
-  found->second->dispatchMessageEvent(message, ports);
+  found->second->dispatchMessageEvent(
+      GetServiceWorker(params.service_worker_info, false),

[falken, 2015/05/18 03:37:09]

nit: false /* adopt_handle */

[xiang, 2015/06/15 02:37:34]

Done.

+      params.message, ports);
 }
 
 void ServiceWorkerDispatcher::AddServiceWorker(