Use V8 Maybe APIs in extensions/renderer

extensions/renderer/app_window_custom_bindings.cc

 // Copyright (c) 2012 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 "extensions/renderer/app_window_custom_bindings.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "content/public/child/v8_value_converter.h"
@@ skipping 57 matching lines @@
   // these argument checks into CHECK().
   if (args.Length() != 2)
     return;
 
   if (!args[0]->IsInt32())
     return;
 
   if (!args[1]->IsBoolean())
     return;
 
-  int view_id = args[0]->Int32Value();
+  int view_id = args[0].As<v8::Int32>()->Value();
 
-  bool inject_titlebar = args[1]->BooleanValue();
+  bool inject_titlebar = args[1].As<v8::Boolean>()->Value();
 
   if (view_id == MSG_ROUTING_NONE)
     return;
 
   content::RenderView* view = content::RenderView::FromRoutingID(view_id);
   if (!view)
     return;
 
   if (inject_titlebar)
     new DidCreateDocumentElementObserver(view, dispatcher_);
@@ skipping 27 matching lines @@
             .GetRawDataResource(IDR_WINDOW_CONTROLS_TEMPLATE_HTML)
             .as_string());
     scoped_ptr<content::V8ValueConverter> converter(
         content::V8ValueConverter::create());
     result = converter->ToV8Value(&value, context()->v8_context());
   }
   args.GetReturnValue().Set(result);
 }
 
 }  // namespace extensions