Make Platform::queryStorageUsageAndQuota work from worker threads

content/child/child_thread.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_CHILD_CHILD_THREAD_H_
 #define CONTENT_CHILD_CHILD_THREAD_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/shared_memory.h"
@@ skipping 15 matching lines @@
 
 namespace WebKit {
 class WebFrame;
 }
 
 namespace content {
 class ChildHistogramMessageFilter;
 class ChildResourceMessageFilter;
 class FileSystemDispatcher;
 class QuotaDispatcher;
+class QuotaMessageFilter;
 class ResourceDispatcher;
 class SocketStreamDispatcher;
 class ThreadSafeSender;
 
 // The main thread of a child process derives from this class.
 class CONTENT_EXPORT ChildThread : public IPC::Listener, public IPC::Sender {
  public:
   // Creates the thread.
   ChildThread();
   // Used for single-process mode.
@@ skipping 131 matching lines @@
   base::MessageLoop* message_loop_;
 
   scoped_ptr<FileSystemDispatcher> file_system_dispatcher_;
 
   scoped_ptr<QuotaDispatcher> quota_dispatcher_;
 
   scoped_refptr<ChildHistogramMessageFilter> histogram_message_filter_;
 
   scoped_refptr<ChildResourceMessageFilter> resource_message_filter_;
 
+  scoped_refptr<QuotaMessageFilter> quota_message_filter_;
+
   base::WeakPtrFactory<ChildThread> channel_connected_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_CHILD_THREAD_H_