Remove CEF-specific integer and char16 typedef's (see #3507)

tests/cefclient/browser/dialog_test.cc

@@ -93,7 +93,7 @@ class Handler : public CefMessageRouterBrowserSide::Handler {
   // Called due to cefQuery execution in dialogs.html.
   virtual bool OnQuery(CefRefPtr<CefBrowser> browser,
                        CefRefPtr<CefFrame> frame,
-                       int64 query_id,
+                       int64_t query_id,
                        const CefString& request,
                        bool persistent,
                        CefRefPtr<Callback> callback) override {