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      1 /*
      2  * Copyright (C) 2014 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef WorkerLoaderClientBridge_h
     32 #define WorkerLoaderClientBridge_h
     33 
     34 #include "core/loader/ThreadableLoaderClient.h"
     35 #include "wtf/Forward.h"
     36 #include "wtf/text/WTFString.h"
     37 
     38 namespace blink {
     39 
     40 class ThreadableLoaderClientWrapper;
     41 class WorkerLoaderProxy;
     42 
     43 // This bridge is created and destroyed on the worker thread, but is
     44 // passed to and used on the main thread. Each did* method relays the given
     45 // data to the client wrapper on the worker context thread.
     46 class WorkerLoaderClientBridge : public ThreadableLoaderClient {
     47 public:
     48     static PassOwnPtr<ThreadableLoaderClient> create(PassRefPtr<ThreadableLoaderClientWrapper>, WorkerLoaderProxy&);
     49     virtual ~WorkerLoaderClientBridge();
     50 
     51     virtual void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent) OVERRIDE;
     52     virtual void didReceiveResponse(unsigned long identifier, const ResourceResponse&) OVERRIDE;
     53     virtual void didReceiveData(const char*, int dataLength) OVERRIDE;
     54     virtual void didDownloadData(int dataLength) OVERRIDE;
     55     virtual void didReceiveCachedMetadata(const char*, int dataLength) OVERRIDE;
     56     virtual void didFinishLoading(unsigned long identifier, double finishTime) OVERRIDE;
     57     virtual void didFail(const ResourceError&) OVERRIDE;
     58     virtual void didFailAccessControlCheck(const ResourceError&) OVERRIDE;
     59     virtual void didFailRedirectCheck() OVERRIDE;
     60 
     61 private:
     62     WorkerLoaderClientBridge(PassRefPtr<ThreadableLoaderClientWrapper>, WorkerLoaderProxy&);
     63 
     64     // Used on the worker context thread, while its refcounting is done on
     65     // either thread.
     66     RefPtr<ThreadableLoaderClientWrapper> m_workerClientWrapper;
     67 
     68     WorkerLoaderProxy& m_loaderProxy;
     69 };
     70 
     71 } // namespace blink
     72 
     73 #endif // WorkerLoaderClientBridge_h
     74