More filesystem cleanup: convert URL-encoded-as-FilePath to actual URL, where

webkit/fileapi/file_system_callback_dispatcher.h

Index: webkit/fileapi/file_system_callback_dispatcher.h
===================================================================
--- webkit/fileapi/file_system_callback_dispatcher.h	(revision 79631)
+++ webkit/fileapi/file_system_callback_dispatcher.h	(working copy)
@@ -9,6 +9,8 @@
 
 #include "base/file_util_proxy.h"
 
+class GURL;
+
 namespace fileapi {
 
 // This class mirrors the callbacks in
@@ -41,7 +43,7 @@
   // Callback for opening a file system. Called with a name and root path for
   // the FileSystem when the request is accepted. Used by WebFileSystem API.
   virtual void DidOpenFileSystem(const std::string& name,
-                                 const FilePath& root_path) = 0;
+                                 const GURL& root) = 0;
 
   // Called with an error code when a requested operation has failed.
   virtual void DidFail(base::PlatformFileError error_code) = 0;