Bug 1220972 - Increase the timeout of browser_perf-details-03.js

devtools/client/performance/test/browser_perf-details-03.js

@@ -1,6 +1,8 @@
 /* Any copyright is dedicated to the Public Domain.
    http://creativecommons.org/publicdomain/zero/1.0/ */
 
+requestLongerTimeout(2);
+
 /**
  * Tests that the details view hides the memory buttons when a recording does not
  * have memory data (withMemory: false), and that when a memory panel is selected,