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

content/browser/renderer_host/redirect_to_file_resource_handler.h

Index: content/browser/renderer_host/redirect_to_file_resource_handler.h
diff --git a/content/browser/renderer_host/redirect_to_file_resource_handler.h b/content/browser/renderer_host/redirect_to_file_resource_handler.h
index 638ea505f30c4c32dadadb48eff63e82c100da0b..b812cee99a259502a6a301743d3151fb670cc533 100644
--- a/content/browser/renderer_host/redirect_to_file_resource_handler.h
+++ b/content/browser/renderer_host/redirect_to_file_resource_handler.h
@@ -7,8 +7,8 @@
 
 #include "base/file_path.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 "content/browser/renderer_host/resource_handler.h"
 #include "net/base/completion_callback.h"
@@ -58,7 +58,7 @@ class RedirectToFileResourceHandler : public ResourceHandler {
   bool WriteMore();
   bool BufIsFull() const;
 
-  base::ScopedCallbackFactory<RedirectToFileResourceHandler> callback_factory_;
+  base::WeakPtrFactory<RedirectToFileResourceHandler> weak_factory_;
 
   ResourceDispatcherHost* host_;
   scoped_refptr<ResourceHandler> next_handler_;