Bug 1162583 - Disable realtime rendering in performance tools when e10s is not on. r=vp

browser/devtools/performance/system.js

@@ -0,0 +1,16 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+"use strict";
+
+/**
+ * A dump file to attach preprocessing directives consumable to the controller
+ * without littering our code with directives.
+ */
+
+const SYSTEM = {};
+
+// If e10s is possible on the platform.
+#ifdef E10S_TESTING_ONLY
+SYSTEM.MULTIPROCESS_SUPPORTED = true;
+#endif