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

content/renderer/service_worker/embedded_worker_context_client.h

 // 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.
 
 #ifndef CONTENT_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_CONTEXT_CLIENT_H_
 #define CONTENT_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_CONTEXT_CLIENT_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
@@ skipping 93 matching lines @@
       createServiceWorkerNetworkProvider(blink::WebDataSource* data_source);
   virtual void postMessageToClient(
       int client_id,
       const blink::WebString& message,
       blink::WebMessagePortChannelArray* channels);
   virtual void postMessageToCrossOriginClient(
       const blink::WebCrossOriginServiceWorkerClient& client,
       const blink::WebString& message,
       blink::WebMessagePortChannelArray* channels);
   virtual void focus(int client_id,
-                     blink::WebServiceWorkerClientFocusCallback*);
+                     blink::WebServiceWorkerClientCallbacks*);
   virtual void skipWaiting(
       blink::WebServiceWorkerSkipWaitingCallbacks* callbacks);
   virtual void claim(blink::WebServiceWorkerClientsClaimCallbacks* callbacks);
 
   // TODO: Implement DevTools related method overrides.
 
   int embedded_worker_id() const { return embedded_worker_id_; }
   base::MessageLoopProxy* main_thread_proxy() const {
     return main_thread_proxy_.get();
   }
@@ skipping 19 matching lines @@
   scoped_refptr<ServiceWorkerProviderContext> provider_context_;
 
   base::WeakPtrFactory<EmbeddedWorkerContextClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EmbeddedWorkerContextClient);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_SERVICE_WORKER_EMBEDDED_WORKER_CONTEXT_CLIENT_H_