Revert 232547 "Pepper: Move FileIO host from renderer to browser."

trunk/src/webkit/browser/fileapi/file_system_operation.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 WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_OPERATION_H_
 #define WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_OPERATION_H_
 
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 62 matching lines @@
   typedef base::Callback<
       void(base::PlatformFileError result,
            const base::PlatformFileInfo& file_info)> GetMetadataCallback;
 
   // Used for OpenFile(). |result| is the return code of the operation.
   // |on_close_callback| will be called after the file is closed in the child
   // process. It can be null, if no operation is needed on closing a file.
   typedef base::Callback<
       void(base::PlatformFileError result,
            base::PlatformFile file,
-           const base::Closure& on_close_callback)> OpenFileCallback;
+           const base::Closure& on_close_callback,
+           base::ProcessHandle peer_handle)> OpenFileCallback;
 
   // Used for ReadDirectoryCallback.
   typedef std::vector<DirectoryEntry> FileEntryList;
 
   // Used for ReadDirectory(). |result| is the return code of the operation,
   // |file_list| is the list of files read, and |has_more| is true if some files
   // are yet to be read.
   typedef base::Callback<
       void(base::PlatformFileError result,
            const FileEntryList& file_list,
@@ skipping 253 matching lines @@
   //
   // This function is used only by Pepper as of writing.
   virtual void TouchFile(const FileSystemURL& path,
                          const base::Time& last_access_time,
                          const base::Time& last_modified_time,
                          const StatusCallback& callback) = 0;
 
   // Opens a file at |path| with |file_flags|, where flags are OR'ed
   // values of base::PlatformFileFlags.
   //
+  // |peer_handle| is the process handle of a pepper plugin process, which
+  // is necessary for underlying IPC calls with Pepper plugins.
+  //
   // This function is used only by Pepper as of writing.
   virtual void OpenFile(const FileSystemURL& path,
                         int file_flags,
+                        base::ProcessHandle peer_handle,
                         const OpenFileCallback& callback) = 0;
 
   // Creates a local snapshot file for a given |path| and returns the
   // metadata and platform path of the snapshot file via |callback|.
   // In local filesystem cases the implementation may simply return
   // the metadata of the file itself (as well as GetMetadata does),
   // while in remote filesystem case the backend may want to download the file
   // into a temporary snapshot file and return the metadata of the
   // temporary file.  Or if the implementaiton already has the local cache
   // data for |path| it can simply return the path to the cache.
@@ skipping 107 matching lines @@
     kOperationOpenFile,
     kOperationCloseFile,
     kOperationGetLocalPath,
     kOperationCancel,
   };
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_BROWSER_FILEAPI_FILE_SYSTEM_OPERATION_H_