Android WebView: post QuotaManager calls to UI thread.

android_webview/browser/aw_browser_context.h

 // 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.
 
 #ifndef ANDROID_WEBVIEW_BROWSER_AW_BROWSER_CONTEXT_H_
 #define ANDROID_WEBVIEW_BROWSER_AW_BROWSER_CONTEXT_H_
 
 #include <vector>
 
 #include "android_webview/browser/aw_download_manager_delegate.h"
@@ skipping 94 matching lines @@
 
  private:
   // The file path where data for this context is persisted.
   base::FilePath context_storage_path_;
 
   JniDependencyFactory* native_factory_;
   scoped_refptr<net::CookieStore> cookie_store_;
   scoped_refptr<AwURLRequestContextGetter> url_request_context_getter_;
   scoped_refptr<content::GeolocationPermissionContext>
       geolocation_permission_context_;
-  scoped_ptr<AwQuotaManagerBridge> quota_manager_bridge_;
+  scoped_refptr<AwQuotaManagerBridge> quota_manager_bridge_;
   scoped_ptr<AwFormDatabaseService> form_database_service_;
 
   AwDownloadManagerDelegate download_manager_delegate_;
 
   scoped_ptr<visitedlink::VisitedLinkMaster> visitedlink_master_;
   scoped_ptr<content::ResourceContext> resource_context_;
 
   bool user_pref_service_ready_;
 
   DISALLOW_COPY_AND_ASSIGN(AwBrowserContext);
 };
 
 }  // namespace android_webview
 
 #endif  // ANDROID_WEBVIEW_BROWSER_AW_BROWSER_CONTEXT_H_