Fixed file/directory url resolution for external mount point provider.

webkit/fileapi/file_system_callback_dispatcher.h

Index: webkit/fileapi/file_system_callback_dispatcher.h
===================================================================
--- webkit/fileapi/file_system_callback_dispatcher.h	(revision 82259)
+++ webkit/fileapi/file_system_callback_dispatcher.h	(working copy)
@@ -58,6 +58,11 @@
   virtual void DidOpenFile(
       base::PlatformFile file,
       base::ProcessHandle peer_handle);
+
+  // Callback for the real local platform path lookup, where possible.
+  // This isn't in WebFileSystemCallbacks.
+  virtual void DidGetLocalPath(const FilePath& local_path);
+
 };
 
 }  // namespace fileapi