Launch packaged app with files on Drive on Chrome OS.

webkit/fileapi/mount_points.h

Index: webkit/fileapi/mount_points.h
diff --git a/webkit/fileapi/mount_points.h b/webkit/fileapi/mount_points.h
index 7fcc2314c8462d72112a09904a27260b37514a8f..d279ec9e93adba47ee4fd05b12c1ecc2ee1b6e3a 100644
--- a/webkit/fileapi/mount_points.h
+++ b/webkit/fileapi/mount_points.h
@@ -88,6 +88,14 @@ class WEBKIT_STORAGE_EXPORT MountPoints {
                                 FileSystemType* type,
                                 base::FilePath* path) const = 0;
 
+ protected:
+  friend class FileSystemContext;
+
+  // Same as CrackURL and CreateCrackedFileSystemURL, but cracks the url already
+  // instantiated as the FileSystemURL class. This is internally used for nested
+  // URL cracking in FileSystemContext.
+  virtual FileSystemURL CrackFileSystemURL(const FileSystemURL& url) const = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(MountPoints);
 };