Fixed playing video in component extensions.

net/url_request/url_request_simple_job.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 NET_URL_REQUEST_URL_REQUEST_SIMPLE_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_SIMPLE_JOB_H_
 
 #include <string>
 
 #include "base/memory/weak_ptr.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_export.h"
-#include "net/url_request/url_request_job.h"
+#include "net/url_request/url_range_request_job.h"
 
 namespace net {
 
 class URLRequest;
 
-class NET_EXPORT URLRequestSimpleJob : public URLRequestJob {
+class NET_EXPORT URLRequestSimpleJob : public URLRangeRequestJob {
  public:
   URLRequestSimpleJob(URLRequest* request, NetworkDelegate* network_delegate);
 
   virtual void Start() OVERRIDE;
   virtual bool ReadRawData(IOBuffer* buf,
                            int buf_size,
                            int *bytes_read) OVERRIDE;
   virtual bool GetMimeType(std::string* mime_type) const OVERRIDE;
   virtual bool GetCharset(std::string* charset) OVERRIDE;
 
@@ skipping 14 matching lines @@
                       std::string* charset,
                       std::string* data,
                       const CompletionCallback& callback) const = 0;
 
  protected:
   void StartAsync();
 
  private:
   void OnGetDataCompleted(int result);
 
+  HttpByteRange byte_range_;
   std::string mime_type_;
   std::string charset_;
   std::string data_;
   int data_offset_;
   base::WeakPtrFactory<URLRequestSimpleJob> weak_factory_;
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_SIMPLE_JOB_H_