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      1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_CHILD_THREAD_SAFE_SENDER_H_
      6 #define CONTENT_CHILD_THREAD_SAFE_SENDER_H_
      7 
      8 #include "base/gtest_prod_util.h"
      9 #include "base/memory/ref_counted.h"
     10 #include "content/common/content_export.h"
     11 #include "ipc/ipc_sender.h"
     12 
     13 namespace base {
     14 class MessageLoopProxy;
     15 }
     16 
     17 namespace IPC {
     18 class SyncMessageFilter;
     19 }
     20 
     21 namespace content {
     22 class ChildThread;
     23 
     24 // The class of Sender returned by ChildThread::thread_safe_sender().
     25 class CONTENT_EXPORT ThreadSafeSender
     26     : public IPC::Sender,
     27       public base::RefCountedThreadSafe<ThreadSafeSender> {
     28  public:
     29   virtual bool Send(IPC::Message* msg) OVERRIDE;
     30 
     31  private:
     32   friend class ChildThread;  // for construction
     33   friend class IndexedDBDispatcherTest;
     34   friend class WebIDBCursorImplTest;
     35   friend class base::RefCountedThreadSafe<ThreadSafeSender>;
     36 
     37   ThreadSafeSender(const scoped_refptr<base::MessageLoopProxy>& main_loop,
     38                    const scoped_refptr<IPC::SyncMessageFilter>& sync_filter);
     39   virtual ~ThreadSafeSender();
     40 
     41   scoped_refptr<base::MessageLoopProxy> main_loop_;
     42   scoped_refptr<IPC::SyncMessageFilter> sync_filter_;
     43 
     44   DISALLOW_COPY_AND_ASSIGN(ThreadSafeSender);
     45 };
     46 
     47 }  // namespace content
     48 
     49 #endif  // CONTENT_CHILD_THREAD_SAFE_SENDER_H_
     50