Remove unused fields from //content.

content/browser/renderer_host/pepper/pepper_file_io_host.h

 // Copyright 2013 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 CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FILE_IO_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FILE_IO_HOST_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 97 matching lines @@
 
   void SendOpenErrorReply(ppapi::host::ReplyMessageContext reply_context);
 
   // Adds file_ to |reply_context| with the specified |open_flags|.
   bool AddFileToReplyContext(
       int32_t open_flags,
       ppapi::host::ReplyMessageContext* reply_context) const;
 
   BrowserPpapiHostImpl* browser_ppapi_host_;
 
-  RenderProcessHost* render_process_host_;
   int render_process_id_;
   base::ProcessId resolved_render_process_id_;
 
   base::FileProxy file_;
   int32_t open_flags_;
 
   // The file system type specified in the Open() call. This will be
   // PP_FILESYSTEMTYPE_INVALID before open was called. This value does not
   // indicate that the open command actually succeeded.
   PP_FileSystemType file_system_type_;
   base::WeakPtr<PepperFileSystemBrowserHost> file_system_host_;
 
   // Valid only for PP_FILESYSTEMTYPE_LOCAL{PERSISTENT,TEMPORARY}.
   scoped_refptr<storage::FileSystemContext> file_system_context_;
   storage::FileSystemURL file_system_url_;
   base::Closure on_close_callback_;
   int64_t max_written_offset_;
   bool check_quota_;
 
   ppapi::FileIOStateManager state_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(PepperFileIOHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_PEPPER_PEPPER_FILE_IO_HOST_H_