Decrease call sites of ScriptState::current()

Source/modules/push_messaging/PushManager.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/push_messaging/PushManager.h"
 
 #include "bindings/v8/CallbackPromiseAdapter.h"
 #include "bindings/v8/ScriptPromise.h"
 #include "bindings/v8/ScriptPromiseResolverWithContext.h"
@@ skipping 10 matching lines @@
 
 PushManager::PushManager()
 {
     ScriptWrappable::init(this);
 }
 
 PushManager::~PushManager()
 {
 }
 
-ScriptPromise PushManager::registerPushMessaging(ExecutionContext* context, const String& senderId)
+ScriptPromise PushManager::registerPushMessaging(ScriptState* scriptState, const String& senderId)
 {
-    ASSERT(context->isDocument());
-    RefPtr<ScriptPromiseResolverWithContext> resolver = ScriptPromiseResolverWithContext::create(ScriptState::current(toIsolate(context)));
+    ASSERT(scriptState->executionContext()->isDocument());
+    RefPtr<ScriptPromiseResolverWithContext> resolver = ScriptPromiseResolverWithContext::create(scriptState);
     ScriptPromise promise = resolver->promise();
-    blink::WebPushClient* client = PushController::clientFrom(toDocument(context)->page());
+    blink::WebPushClient* client = PushController::clientFrom(toDocument(scriptState->executionContext())->page());
     ASSERT(client);
     client->registerPushMessaging(senderId, new CallbackPromiseAdapter<PushRegistration, PushError>(resolver));
     return promise;
 }
 
 } // namespace WebCore