Bug 1377280 - Enable keyboard APZ on nightly for all platforms except Android. r=kats

MozReview-Commit-ID: D8OvXehFUYW

--HG--
extra : rebase_source : a65f18c7672bbc3efebb50fe91de5ade3d01714d
extra : intermediate-source : 042978789b5af309a5f7fc4575122ccdb8f77264
extra : source : 7dc3238f839a8dbc7e8dffbef3f0ae6c94847f23

modules/libpref/init/all.js

@@ -703,7 +703,11 @@ pref("apz.fling_stop_on_tap_threshold", "0.05");
 pref("apz.fling_stopped_threshold", "0.01");
 pref("apz.frame_delay.enabled", false);
 pref("apz.highlight_checkerboarded_areas", false);
+#if defined(NIGHTLY_BUILD) && !defined(MOZ_WIDGET_ANDROID)
+pref("apz.keyboard.enabled", true);
+#else
 pref("apz.keyboard.enabled", false);
+#endif
 pref("apz.max_velocity_inches_per_ms", "-1.0");
 pref("apz.max_velocity_queue_size", 5);
 pref("apz.min_skate_speed", "1.0");