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

webkit/plugins/ppapi/ppb_file_ref_impl.h

Index: webkit/plugins/ppapi/ppb_file_ref_impl.h
===================================================================
--- webkit/plugins/ppapi/ppb_file_ref_impl.h	(revision 79631)
+++ webkit/plugins/ppapi/ppb_file_ref_impl.h	(working copy)
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "base/file_path.h"
+#include "googleurl/src/gurl.h"
 #include "ppapi/c/dev/ppb_file_ref_dev.h"
 #include "webkit/plugins/ppapi/resource.h"
 
@@ -52,6 +53,9 @@
   // Returns the system path corresponding to this file.
   FilePath GetSystemPath() const;
 
+  // Returns the FileSystem API URL corresponding to this file.
+  GURL GetFileSystemURL() const;
+
  private:
   scoped_refptr<PPB_FileSystem_Impl> file_system_;
   std::string virtual_path_;  // UTF-8 encoded