[ServiceWorker] Update .focus() to return a WindowClient instead of bool.

Source/modules/serviceworkers/ServiceWorkerWindowClient.cpp

 // 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 "config.h"
 #include "modules/serviceworkers/ServiceWorkerWindowClient.h"
 
 #include "bindings/core/v8/CallbackPromiseAdapter.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/ExceptionCode.h"
 #include "core/page/PageVisibilityState.h"
 #include "core/page/WindowFocusAllowedIndicator.h"
 #include "modules/serviceworkers/ServiceWorkerError.h"
 #include "modules/serviceworkers/ServiceWorkerGlobalScopeClient.h"
 #include "public/platform/WebString.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
+ServiceWorkerWindowClient* ServiceWorkerWindowClient::take(ScriptPromiseResolver*, ServiceWorkerWindowClient::WebType* webClientRaw)
+{
+    return ServiceWorkerWindowClient::create(*webClientRaw);
+}
+
+void ServiceWorkerWindowClient::dispose(ServiceWorkerWindowClient::WebType* webClientRaw)
+{
+    delete webClientRaw;
+}
+
 ServiceWorkerWindowClient* ServiceWorkerWindowClient::create(const WebServiceWorkerClientInfo& info)
 {
     return new ServiceWorkerWindowClient(info);
 }
 
 ServiceWorkerWindowClient::ServiceWorkerWindowClient(const WebServiceWorkerClientInfo& info)
     : ServiceWorkerClient(info)
     , m_pageVisibilityState(info.pageVisibilityState)
     , m_isFocused(info.isFocused)
     , m_frameType(info.frameType)
@@ skipping 35 matching lines @@
 {
     RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
     ScriptPromise promise = resolver->promise();
 
     if (!scriptState->executionContext()->isWindowFocusAllowed()) {
         resolver->reject(DOMException::create(InvalidAccessError, "Not allowed to focus a window."));
         return promise;
     }
     scriptState->executionContext()->consumeWindowFocus();
 
-    ServiceWorkerGlobalScopeClient::from(scriptState->executionContext())->focus(id(), new CallbackPromiseAdapter<bool, ServiceWorkerError>(resolver));
+    ServiceWorkerGlobalScopeClient::from(scriptState->executionContext())->focus(id(), new CallbackPromiseAdapter<ServiceWorkerWindowClient, ServiceWorkerError>(resolver));
     return promise;
 }
 
 void ServiceWorkerWindowClient::trace(Visitor* visitor)
 {
     ServiceWorkerClient::trace(visitor);
 }
 
 } // namespace blink