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      1 /*
      2  * Copyright (C) 2010 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 WebBlobRegistry_h
     32 #define WebBlobRegistry_h
     33 
     34 #include "WebCommon.h"
     35 
     36 namespace blink {
     37 
     38 class WebBlobData;
     39 class WebString;
     40 class WebThreadSafeData;
     41 class WebURL;
     42 
     43 class WebBlobRegistry {
     44 public:
     45     virtual ~WebBlobRegistry() { }
     46 
     47     virtual void registerBlobData(const WebString& uuid, const WebBlobData&) { }
     48     virtual void addBlobDataRef(const WebString& uuid) { }
     49     virtual void removeBlobDataRef(const WebString& uuid) { }
     50     virtual void registerPublicBlobURL(const WebURL&, const WebString& uuid) { }
     51     virtual void revokePublicBlobURL(const WebURL&) { }
     52 
     53     // Registers a stream URL referring to a stream with the specified media
     54     // type.
     55     virtual void registerStreamURL(const WebURL&, const WebString&) { BLINK_ASSERT_NOT_REACHED(); }
     56 
     57     // Registers a stream URL referring to the stream identified by the
     58     // specified srcURL.
     59     virtual void registerStreamURL(const WebURL&, const WebURL& srcURL) { BLINK_ASSERT_NOT_REACHED(); };
     60 
     61     // Add data to the stream referred by the URL.
     62     virtual void addDataToStream(const WebURL&, WebThreadSafeData&) { BLINK_ASSERT_NOT_REACHED(); }
     63 
     64     // Tell the registry that construction of this stream has completed
     65     // successfully and so it won't receive any more data.
     66     virtual void finalizeStream(const WebURL&) { BLINK_ASSERT_NOT_REACHED(); }
     67 
     68     // Tell the registry that construction of this stream has been aborted and
     69     // so it won't receive any more data.
     70     virtual void abortStream(const WebURL&) { BLINK_ASSERT_NOT_REACHED(); }
     71 
     72     // Unregisters a stream referred by the URL.
     73     virtual void unregisterStreamURL(const WebURL&) { BLINK_ASSERT_NOT_REACHED(); }
     74 };
     75 
     76 } // namespace blink
     77 
     78 #endif // WebBlobRegistry_h
     79