Call setLayerType(LAYER_TYPE_HARDWARE) for EmojiPalettesView too.

This CL probably does not addresses the bug, but still this should
be the right thing to do here.

bug: 12667742
Change-Id: I587652942fd66094779fb7942c734e0ff5f9d0b6

java/src/com/android/inputmethod/keyboard/EmojiPalettesView.java

@@ -632,7 +632,9 @@ public final class EmojiPalettesView extends LinearLayout implements OnTabChange
     }
 
     public void setHardwareAcceleratedDrawingEnabled(final boolean enabled) {
-        // TODO:
+        if (!enabled) return;
+        // TODO: Should use LAYER_TYPE_SOFTWARE when hardware acceleration is off?
+        setLayerType(LAYER_TYPE_HARDWARE, null);
     }
 
     private static void setupAlphabetKey(final TextView alphabetKey, final String label,