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

content/browser/renderer_host/redirect_to_file_resource_handler.cc

Index: content/browser/renderer_host/redirect_to_file_resource_handler.cc
diff --git a/content/browser/renderer_host/redirect_to_file_resource_handler.cc b/content/browser/renderer_host/redirect_to_file_resource_handler.cc
index 64d4fcf35860dad0a77536000cc53b5d47df98cb..b7a5d321125c677d12b8297fe29b09bae85729e7 100644
--- a/content/browser/renderer_host/redirect_to_file_resource_handler.cc
+++ b/content/browser/renderer_host/redirect_to_file_resource_handler.cc
@@ -4,6 +4,7 @@
 
 #include "content/browser/renderer_host/redirect_to_file_resource_handler.h"
 
+#include "base/bind.h"
 #include "base/file_util.h"
 #include "base/file_util_proxy.h"
 #include "base/logging.h"
@@ -26,7 +27,7 @@ RedirectToFileResourceHandler::RedirectToFileResourceHandler(
     ResourceHandler* next_handler,
     int process_id,
     ResourceDispatcherHost* host)
-    : callback_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
+    : weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)),
       host_(host),
       next_handler_(next_handler),
       process_id_(process_id),
@@ -78,8 +79,8 @@ bool RedirectToFileResourceHandler::OnWillStart(int request_id,
     base::FileUtilProxy::CreateTemporary(
         BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE),
         base::PLATFORM_FILE_ASYNC,
-        callback_factory_.NewCallback(
-            &RedirectToFileResourceHandler::DidCreateTemporaryFile));
+        base::Bind(&RedirectToFileResourceHandler::DidCreateTemporaryFile,
+                   weak_factory_.GetWeakPtr()));
     return true;
   }
   return next_handler_->OnWillStart(request_id, url, defer);