Bug 1419581 - Pre: Add missing excludes when building without MOZ_NATIVE_DEVICES. r=nalexander

MozReview-Commit-ID: BXNFBEs2017

--HG--
extra : rebase_source : 46977618d002691b1f0add847faaec47d1b15404

mobile/android/app/build.gradle

@@ -123,6 +123,8 @@ android {
                     exclude 'org/mozilla/gecko/GeckoMediaPlayer.java'
                     exclude 'org/mozilla/gecko/GeckoPresentationDisplay.java'
                     exclude 'org/mozilla/gecko/MediaPlayerManager.java'
+                    exclude 'org/mozilla/gecko/PresentationMediaPlayerManager.java'
+                    exclude 'org/mozilla/gecko/RemotePresentationService.java'
                 }
 
                 if (mozconfig.substs.MOZ_INSTALL_TRACKING) {