Remaining cleanup (base::Bind): Replacing FileUtilProxy calls with new callback

webkit/blob/blob_url_request_job.h

Index: webkit/blob/blob_url_request_job.h
diff --git a/webkit/blob/blob_url_request_job.h b/webkit/blob/blob_url_request_job.h
index 843d9ca981b3e93f2221f36eb6f5a25297e61fc4..ffdace19da2143560d99a7b8c753f9dfcb727077 100644
--- a/webkit/blob/blob_url_request_job.h
+++ b/webkit/blob/blob_url_request_job.h
@@ -6,8 +6,8 @@
 #define WEBKIT_BLOB_BLOB_URL_REQUEST_JOB_H_
 
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_callback_factory.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
 #include "base/platform_file.h"
 #include "base/task.h"
 #include "net/base/completion_callback.h"
@@ -69,7 +69,7 @@ class BlobURLRequestJob : public net::URLRequestJob {
                bool created);
   void DidRead(int result);
 
-  base::ScopedCallbackFactory<BlobURLRequestJob> callback_factory_;
+  base::WeakPtrFactory<BlobURLRequestJob> weak_factory_;
   scoped_refptr<BlobData> blob_data_;
   scoped_refptr<base::MessageLoopProxy> file_thread_proxy_;
   net::OldCompletionCallbackImpl<BlobURLRequestJob> io_callback_;