********** Chromium Blob hacking

content/common/fileapi/webfilesystem_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/common/fileapi/webfilesystem_impl.h"
 
 #include "content/common/child_thread.h"
 #include "content/common/fileapi/file_system_dispatcher.h"
 #include "content/common/fileapi/webfilesystem_callback_dispatcher.h"
 #include "content/common/fileapi/webfilewriter_impl.h"
@@ skipping 102 matching lines @@
   dispatcher->ReadDirectory(GURL(path),
                             new WebFileSystemCallbackDispatcher(callbacks));
 }
 
 WebKit::WebFileWriter* WebFileSystemImpl::createFileWriter(
     const WebURL& path, WebKit::WebFileWriterClient* client) {
   return new WebFileWriterImpl(GURL(path), client);
 }
 
 void WebFileSystemImpl::createSnapshotFileAndReadMetadata(
-    const WebKit::WebURL& blobURL,
     const WebKit::WebURL& path,
     WebKit::WebFileSystemCallbacks* callbacks) {
   FileSystemDispatcher* dispatcher =
       ChildThread::current()->file_system_dispatcher();
   dispatcher->CreateSnapshotFile(
-      GURL(blobURL), GURL(path),
-      new WebFileSystemCallbackDispatcher(callbacks));
+      GURL(path), new WebFileSystemCallbackDispatcher(callbacks));
 }
 
 }  // namespace content