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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_BROWSER_STREAMS_STREAM_URL_REQUEST_JOB_H_
      6 #define CONTENT_BROWSER_STREAMS_STREAM_URL_REQUEST_JOB_H_
      7 
      8 #include "net/http/http_status_code.h"
      9 #include "net/url_request/url_request_job.h"
     10 #include "content/browser/streams/stream_read_observer.h"
     11 #include "content/common/content_export.h"
     12 
     13 namespace content {
     14 
     15 class Stream;
     16 
     17 // A request job that handles reading stream URLs.
     18 class CONTENT_EXPORT StreamURLRequestJob
     19     : public net::URLRequestJob,
     20       public StreamReadObserver {
     21  public:
     22   StreamURLRequestJob(net::URLRequest* request,
     23                       net::NetworkDelegate* network_delegate,
     24                       scoped_refptr<Stream> stream);
     25 
     26   // StreamObserver methods.
     27   virtual void OnDataAvailable(Stream* stream) OVERRIDE;
     28 
     29   // net::URLRequestJob methods.
     30   virtual void Start() OVERRIDE;
     31   virtual void Kill() OVERRIDE;
     32   virtual bool ReadRawData(net::IOBuffer* buf,
     33                            int buf_size,
     34                            int* bytes_read) OVERRIDE;
     35   virtual bool GetMimeType(std::string* mime_type) const OVERRIDE;
     36   virtual void GetResponseInfo(net::HttpResponseInfo* info) OVERRIDE;
     37   virtual int GetResponseCode() const OVERRIDE;
     38   virtual void SetExtraRequestHeaders(
     39       const net::HttpRequestHeaders& headers) OVERRIDE;
     40 
     41  protected:
     42   virtual ~StreamURLRequestJob();
     43 
     44  private:
     45   void DidStart();
     46   void NotifyFailure(int);
     47   void HeadersCompleted(net::HttpStatusCode status_code);
     48   void ClearStream();
     49 
     50   base::WeakPtrFactory<StreamURLRequestJob> weak_factory_;
     51   scoped_refptr<content::Stream> stream_;
     52   bool headers_set_;
     53   scoped_refptr<net::IOBuffer> pending_buffer_;
     54   int pending_buffer_size_;
     55   scoped_ptr<net::HttpResponseInfo> response_info_;
     56 
     57   int total_bytes_read_;
     58   int max_range_;
     59   bool request_failed_;
     60 
     61   DISALLOW_COPY_AND_ASSIGN(StreamURLRequestJob);
     62 };
     63 
     64 }  // namespace content
     65 
     66 #endif  // CONTENT_BROWSER_STREAMS_STREAM_URL_REQUEST_JOB_H_
     67