Make URLRequestHttpJob the only URLRequestJob concerned with FilterContext.

net/url_request/url_request_file_job.h

-// Copyright (c) 2006-2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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_FILE_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_FILE_JOB_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
@@ skipping 20 matching lines @@
 
 #if defined(OS_CHROMEOS)
   static bool AccessDisabled(const FilePath& file_path);
 #endif
 
   // URLRequestJob:
   virtual void Start();
   virtual void Kill();
   virtual bool ReadRawData(IOBuffer* buf, int buf_size, int* bytes_read);
   virtual bool IsRedirectResponse(GURL* location, int* http_status_code);
-  virtual bool GetContentEncodings(
-      std::vector<Filter::FilterType>* encoding_type);
+  virtual Filter* SetupFilter() const;
   virtual bool GetMimeType(std::string* mime_type) const;
   virtual void SetExtraRequestHeaders(const HttpRequestHeaders& headers);
 
  protected:
   virtual ~URLRequestFileJob();
 
   // The OS-specific full path name of the file
   FilePath file_path_;
 
  private:
@@ skipping 14 matching lines @@
 #endif
 
   ScopedRunnableMethodFactory<URLRequestFileJob> method_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestFileJob);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_FILE_JOB_H_