Bug 1522724 - Rename test_fullscreen.html to test_group_fullscreen.html. r=botond

Depends on D17583

Differential Revision: https://phabricator.services.mozilla.com/D17584

--HG--
rename : gfx/layers/apz/test/mochitest/test_fullscreen.html => gfx/layers/apz/test/mochitest/test_group_fullscreen.html
extra : moz-landing-system : lando

gfx/layers/apz/test/mochitest/mochitest.ini

@@ -16,7 +16,7 @@
 [test_bug1304689-2.html]
 [test_bug1464568.html]
 [test_frame_reconstruction.html]
-[test_fullscreen.html]
+[test_group_fullscreen.html]
   run-if = (os == 'android')
 [test_group_minimum_scale_size.html]
   run-if = (os == 'android')