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

chrome/browser/nacl_host/nacl_process_host.cc

Index: chrome/browser/nacl_host/nacl_process_host.cc
diff --git a/chrome/browser/nacl_host/nacl_process_host.cc b/chrome/browser/nacl_host/nacl_process_host.cc
index 195a2fa21a04fb8ae024b7fad746dc6500ed0704..ebf3bbfadd4b433a08ae1189c1eba12612b34f57 100644
--- a/chrome/browser/nacl_host/nacl_process_host.cc
+++ b/chrome/browser/nacl_host/nacl_process_host.cc
@@ -264,13 +264,12 @@ void NaClProcessHost::OnProcessLaunched() {
     irt_path = plugin_dir.Append(GetIrtLibraryFilename());
   }
 
-  base::FileUtilProxy::CreateOrOpenCallback callback =
-      base::Bind(&NaClProcessHost::OpenIrtFileDone, weak_factory_.GetWeakPtr());
   if (!base::FileUtilProxy::CreateOrOpen(
            BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE),
            irt_path,
            base::PLATFORM_FILE_OPEN | base::PLATFORM_FILE_READ,
-           callback)) {
+           base::Bind(&NaClProcessHost::OpenIrtFileDone,
+                      weak_factory_.GetWeakPtr()))) {
     delete this;
   }
 }