Bug 1323384 - Add a "stylo" variable to the reftest condition sandbox. r=xidorn

MozReview-Commit-ID: 27oTyI3QWYM

--HG--
extra : rebase_source : fc79361049642edb6434f15b40379a3ca9521e43

layout/tools/reftest/reftest.jsm

@@ -714,6 +714,12 @@ function BuildConditionSandbox(aURL) {
     sandbox.webrtc = false;
 #endif
 
+#ifdef MOZ_STYLO
+    sandbox.stylo = true;
+#else
+    sandbox.stylo = false;
+#endif
+
     var hh = CC[NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX + "http"].
                  getService(CI.nsIHttpProtocolHandler);
     var httpProps = ["userAgent", "appName", "appVersion", "vendor",