ServiceWorker: Send state change events via SWProviderHost

content/browser/service_worker/service_worker_handle.cc

 // Copyright 2014 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_handle.h"
 
 #include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_registration.h"
 #include "content/common/service_worker/service_worker_messages.h"
 #include "content/common/service_worker/service_worker_types.h"
-#include "ipc/ipc_sender.h"
 
 namespace content {
 
 namespace {
 
 blink::WebServiceWorkerState
 GetWebServiceWorkerState(ServiceWorkerVersion* version) {
   DCHECK(version);
   switch (version->status()) {
     case ServiceWorkerVersion::NEW:
@@ skipping 10 matching lines @@
       return blink::WebServiceWorkerStateRedundant;
   }
   NOTREACHED() << version->status();
   return blink::WebServiceWorkerStateUnknown;
 }
 
 }  // namespace
 
 scoped_ptr<ServiceWorkerHandle> ServiceWorkerHandle::Create(
     base::WeakPtr<ServiceWorkerContextCore> context,
-    IPC::Sender* sender,
+    base::WeakPtr<ServiceWorkerProviderHost> provider_host,
     ServiceWorkerVersion* version) {
-  if (!context || !version)
+  if (!context || !provider_host || !version)
     return scoped_ptr<ServiceWorkerHandle>();
   ServiceWorkerRegistration* registration =
       context->GetLiveRegistration(version->registration_id());
   return make_scoped_ptr(new ServiceWorkerHandle(
-      context, sender, registration, version));
+      context, provider_host, registration, version));
 }
 
 ServiceWorkerHandle::ServiceWorkerHandle(
     base::WeakPtr<ServiceWorkerContextCore> context,
-    IPC::Sender* sender,
+    base::WeakPtr<ServiceWorkerProviderHost> provider_host,
     ServiceWorkerRegistration* registration,
     ServiceWorkerVersion* version)
     : context_(context),
-      sender_(sender),
+      provider_host_(provider_host),
       handle_id_(context.get() ? context->GetNewServiceWorkerHandleId() : -1),
       ref_count_(1),
       registration_(registration),
       version_(version) {
   version_->AddListener(this);
 }
 
 ServiceWorkerHandle::~ServiceWorkerHandle() {
   version_->RemoveListener(this);
   // TODO(kinuko): At this point we can discard the registration if
   // all documents/handles that have a reference to the registration is
   // closed or freed up, but could also keep it alive in cache
   // (e.g. in context_) for a while with some timer so that we don't
   // need to re-load the same registration from disk over and over.
 }
 
 void ServiceWorkerHandle::OnVersionStateChanged(ServiceWorkerVersion* version) {
-  sender_->Send(new ServiceWorkerMsg_ServiceWorkerStateChanged(
-      kDocumentMainThreadId, handle_id_, GetWebServiceWorkerState(version)));
+  if (!provider_host_)
+    return;
+  provider_host_->SendServiceWorkerStateChangedMessage(
+      handle_id_, GetWebServiceWorkerState(version));
 }
 
 ServiceWorkerObjectInfo ServiceWorkerHandle::GetObjectInfo() {
   ServiceWorkerObjectInfo info;
   info.handle_id = handle_id_;
   info.url = version_->script_url();
   info.state = GetWebServiceWorkerState(version_.get());
   info.version_id = version_->version_id();
   return info;
 }
 
 void ServiceWorkerHandle::IncrementRefCount() {
   DCHECK_GT(ref_count_, 0);
   ++ref_count_;
 }
 
 void ServiceWorkerHandle::DecrementRefCount() {
   DCHECK_GE(ref_count_, 0);
   --ref_count_;
 }
 
 }  // namespace content