Update some uses of Value in chrome/browser to use the base:: namespace.

chrome/browser/extensions/api/developer_private/developer_private_api.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/browser/extensions/api/developer_private/developer_private_api.h"
 
 #include "apps/app_load_service.h"
 #include "apps/app_restore_service.h"
 #include "apps/saved_files_service.h"
 #include "apps/shell_window.h"
@@ skipping 220 matching lines @@
           content::Details<const RenderViewHost>(details).ptr());
       break;
     default:
       NOTREACHED();
       return;
   }
 
   if (extension)
     event_data.item_id = extension->id();
 
-  scoped_ptr<ListValue> args(new ListValue());
+  scoped_ptr<base::ListValue> args(new base::ListValue());
   args->Append(event_data.ToValue().release());
 
   event_name = developer_private::OnItemStateChanged::kEventName;
   scoped_ptr<Event> event(new Event(event_name, args.Pass()));
   ExtensionSystem::Get(profile)->event_router()->BroadcastEvent(event.Pass());
 }
 
 void DeveloperPrivateAPI::SetLastUnpackedDirectory(const base::FilePath& path) {
   last_unpacked_directory_ = path;
 }
@@ skipping 1089 matching lines @@
   return true;
 }
 
 DeveloperPrivateIsProfileManagedFunction::
     ~DeveloperPrivateIsProfileManagedFunction() {
 }
 
 } // namespace api
 
 } // namespace extensions