Pepper: Move FileIO host from renderer to browser.

webkit/browser/fileapi/file_system_operation.h

Index: webkit/browser/fileapi/file_system_operation.h
diff --git a/webkit/browser/fileapi/file_system_operation.h b/webkit/browser/fileapi/file_system_operation.h
index 8ff6956fae127190ac330e9d3689552f8401f408..ded87f71ec2801201de393a0062c29b2eac103d6 100644
--- a/webkit/browser/fileapi/file_system_operation.h
+++ b/webkit/browser/fileapi/file_system_operation.h
@@ -80,8 +80,7 @@ class FileSystemOperation {
   typedef base::Callback<
       void(base::PlatformFileError result,
            base::PlatformFile file,
-           const base::Closure& on_close_callback,
-           base::ProcessHandle peer_handle)> OpenFileCallback;
+           const base::Closure& on_close_callback)> OpenFileCallback;
 
   // Used for ReadDirectoryCallback.
   typedef std::vector<DirectoryEntry> FileEntryList;
@@ -355,13 +354,9 @@ class FileSystemOperation {
   // 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