Update to Chromium revision 40af916d (#303546).

- Standardize usage of virtual/override specifiers in CEF internals (see http://crbug.com/417463).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@1903 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/geolocation_impl.cc

@@ -26,6 +26,10 @@ class CefLocationRequest :
   }
 
  private:
+  friend class base::RefCountedThreadSafe<CefLocationRequest>;
+
+  ~CefLocationRequest() {}
+
   void OnLocationUpdate(const content::Geoposition& position) {
     CEF_REQUIRE_UIT();
     if (callback_.get()) {