Make Platform::queryStorageUsageAndQuota work from worker threads

content/browser/renderer_host/quota_dispatcher_host.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 CONTENT_BROWSER_RENDERER_HOST_QUOTA_DISPATCHER_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_QUOTA_DISPATCHER_HOST_H_
 
 #include "base/basictypes.h"
 #include "base/id_map.h"
 #include "content/public/browser/browser_message_filter.h"
@@ skipping 24 matching lines @@
 
  protected:
   virtual ~QuotaDispatcherHost();
 
  private:
   class RequestDispatcher;
   class QueryUsageAndQuotaDispatcher;
   class RequestQuotaDispatcher;
 
   void OnQueryStorageUsageAndQuota(
+      int ipc_thread_id,
       int request_id,
       const GURL& origin_url,
       quota::StorageType type);
   void OnRequestStorageQuota(
       int render_view_id,
       int request_id,
       const GURL& origin_url,
       quota::StorageType type,
       int64 requested_size);
 
   // The ID of this process.
   int process_id_;
 
   quota::QuotaManager* quota_manager_;
   scoped_refptr<QuotaPermissionContext> permission_context_;
 
   IDMap<RequestDispatcher, IDMapOwnPointer> outstanding_requests_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(QuotaDispatcherHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_QUOTA_DISPATCHER_HOST_H_