[ServiceWorker] Update SWProviderHost::Focus() to return a Client.

content/renderer/service_worker/embedded_worker_context_client.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/renderer/service_worker/embedded_worker_context_client.h"
 
 #include <map>
 #include <string>
 
 #include "base/lazy_instance.h"
@@ skipping 369 matching lines @@
 void EmbeddedWorkerContextClient::postMessageToCrossOriginClient(
     const blink::WebCrossOriginServiceWorkerClient& client,
     const blink::WebString& message,
     blink::WebMessagePortChannelArray* channels) {
   DCHECK(script_context_);
   script_context_->PostCrossOriginMessageToClient(client, message,
                                                   make_scoped_ptr(channels));
 }
 
 void EmbeddedWorkerContextClient::focus(
-    int client_id, blink::WebServiceWorkerClientFocusCallback* callback) {
+    int client_id, blink::WebServiceWorkerClientCallbacks* callback) {
   DCHECK(script_context_);
   script_context_->FocusClient(client_id, callback);
 }
 
 void EmbeddedWorkerContextClient::skipWaiting(
     blink::WebServiceWorkerSkipWaitingCallbacks* callbacks) {
   DCHECK(script_context_);
   script_context_->SkipWaiting(callbacks);
 }
 
@@ skipping 46 matching lines @@
   registration->SetWaiting(
       dispatcher->GetServiceWorker(attrs.waiting, false));
   registration->SetActive(
       dispatcher->GetServiceWorker(attrs.active, false));
 
   script_context_->SetRegistrationInServiceWorkerGlobalScope(
       registration.Pass());
 }
 
 }  // namespace content