Add deletable file refs to Blobs

webkit/blob/blob_storage_controller.h

Index: webkit/blob/blob_storage_controller.h
===================================================================
--- webkit/blob/blob_storage_controller.h	(revision 61866)
+++ webkit/blob/blob_storage_controller.h	(working copy)
@@ -10,7 +10,11 @@
 #include "base/ref_counted.h"
 
 class GURL;
+class FilePath;
 
+namespace base {
+class Time;
+}
 namespace net {
 class UploadData;
 }
@@ -39,6 +43,9 @@
                           BlobData* src_blob_data,
                           uint64 offset,
                           uint64 length);
+  void AppendFileItem(BlobData* target_blob_data,
+                      const FilePath& file_path, uint64 offset, uint64 length,
+                      const base::Time& expected_modification_time);
 
   typedef base::hash_map<std::string, scoped_refptr<BlobData> > BlobMap;
   BlobMap blob_map_;