[Background Sync] Use Mojo IPC to fire background sync events

content/browser/service_worker/service_worker_dispatcher_host.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/service_worker/service_worker_dispatcher_host.h"
 
 #include "base/logging.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 92 matching lines @@
     : BrowserMessageFilter(kFilteredMessageClasses,
                            arraysize(kFilteredMessageClasses)),
       render_process_id_(render_process_id),
       message_port_message_filter_(message_port_message_filter),
       resource_context_(resource_context),
       channel_ready_(false) {
 }
 
 ServiceWorkerDispatcherHost::~ServiceWorkerDispatcherHost() {
   if (GetContext()) {
+    GetContext()->RemoveMojoEventDispatcher(render_process_id_);
     GetContext()->RemoveAllProviderHostsForProcess(render_process_id_);
     GetContext()->embedded_worker_registry()->RemoveChildProcessSender(
         render_process_id_);
   }
 }
 
 void ServiceWorkerDispatcherHost::Init(
     ServiceWorkerContextWrapper* context_wrapper) {
   if (!BrowserThread::CurrentlyOn(BrowserThread::IO)) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&ServiceWorkerDispatcherHost::Init,
                    this, make_scoped_refptr(context_wrapper)));
     return;
   }
 
   context_wrapper_ = context_wrapper;
   if (!GetContext())
     return;
   GetContext()->embedded_worker_registry()->AddChildProcessSender(
       render_process_id_, this, message_port_message_filter_);
+
+  mojo_event_dispatcher_ =
+      make_scoped_ptr(new ServiceWorkerMojoEventDispatcher(render_process_id_));
+  GetContext()->AddMojoEventDispatcher(mojo_event_dispatcher_.get());
 }
 
 void ServiceWorkerDispatcherHost::OnFilterAdded(IPC::Sender* sender) {
   TRACE_EVENT0("ServiceWorker",
                "ServiceWorkerDispatcherHost::OnFilterAdded");
   channel_ready_ = true;
   std::vector<IPC::Message*> messages;
   pending_messages_.release(&messages);
   for (size_t i = 0; i < messages.size(); ++i) {
     BrowserMessageFilter::Send(messages[i]);
@@ skipping 1084 matching lines @@
   if (!handle) {
     bad_message::ReceivedBadMessage(this,
                                     bad_message::SWDH_TERMINATE_BAD_HANDLE);
     return;
   }
   handle->version()->StopWorker(
       base::Bind(&ServiceWorkerUtils::NoOpStatusCallback));
 }
 
 }  // namespace content