Extract ExtensionRequestSender from SchemaGeneratedBindings.

chrome/renderer/extensions/event_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 "chrome/renderer/extensions/event_bindings.h"
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/lazy_instance.h"
@@ skipping 55 matching lines @@
     DCHECK(args[0]->IsString() || args[0]->IsUndefined());
 
     if (args[0]->IsString()) {
       ExtensionImpl* self = GetFromArguments<ExtensionImpl>(args);
       const ChromeV8ContextSet& context_set =
           self->extension_dispatcher()->v8_context_set();
       ChromeV8Context* context = context_set.GetCurrent();
       CHECK(context);
       std::string event_name(*v8::String::AsciiValue(args[0]));
 
-      if (!self->CheckCurrentContextAccessToExtensionAPI(event_name))
+      ExtensionDispatcher* extension_dispatcher = self->extension_dispatcher();
+      if (!extension_dispatcher->CheckCurrentContextAccessToExtensionAPI(
+              event_name))
         return v8::Undefined();
 
       EventListenerCounts& listener_counts =
           g_listener_counts.Get()[context->extension_id()];
       if (++listener_counts[event_name] == 1) {
         content::RenderThread::Get()->Send(
             new ExtensionHostMsg_AddListener(context->extension_id(),
                                              event_name));
       }
 
@@ skipping 61 matching lines @@
     return (extension && extension->has_lazy_background_page() &&
             helper->view_type() == chrome::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE);
   }
 };
 
 }  // namespace
 
 ChromeV8Extension* EventBindings::Get(ExtensionDispatcher* dispatcher) {
   return new ExtensionImpl(dispatcher);
 }