Bug 1717117: Enable low-quality-pinch-zoom pref on Android Nightly. r=jrmuizel

Differential Revision: https://phabricator.services.mozilla.com/D118224

modules/libpref/init/StaticPrefList.yaml

@@ -5238,7 +5238,11 @@
 # for devices with weak GPUs, or when running SWGL.
 - name: gfx.webrender.low-quality-pinch-zoom
   type: bool
+#if defined(MOZ_WIDGET_ANDROID) && defined(NIGHTLY_BUILD)
+  value: true
+#else
   value: false
+#endif
   mirror: once
 
 # Use vsync events generated by hardware