Bug 1287720 - Enable dom/browser-element mochitest-chrome tests on Android; r=me

dom/browser-element/mochitest/chrome.ini

@@ -1,5 +1,5 @@
 [DEFAULT]
-skip-if = (buildapp == 'b2g' && (toolkit != 'gonk' || debug)) || e10s || toolkit == 'android' # Bug 1287720: takes too long on android
+skip-if = (buildapp == 'b2g' && (toolkit != 'gonk' || debug)) || e10s
 
 support-files =
   audio.ogg