Update to Chromium revision 167921.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@908 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/resource_request_job.cc

@@ -168,7 +168,6 @@ void CefResourceRequestJob::Start() {
   // Add default headers if not already specified.
   const net::URLRequestContext* context = request_->context();
   if (context) {
-    CefRequest::HeaderMap::const_iterator it;
     CefRequest::HeaderMap headerMap;
     cef_request_->GetHeaderMap(headerMap);
     bool changed = false;