Layout refinement for app lists

Make all app lists (or at least all current app lists) use the same
base layout for icon, label, and sizing/padding.  This way they
should look the same.

Bug: 21727125
Bug: 21726922
Bug: 21853632
Change-Id: I3cffadb9e7b5184d4209deacd4ea70ec1d4f71b4

src/com/android/settings/applications/LayoutPreference.java

@@ -58,6 +58,11 @@ public class LayoutPreference extends Preference {
         return mRootView;
     }
 
+    @Override
+    protected void onBindView(View view) {
+        // Do nothing.
+    }
+
     public View findViewById(int id) {
         return mRootView.findViewById(id);
     }