Update Settings to use themed Context.getDrawable()

Explicit null theme is passed when using Resources.getDrawable() and
no theme is available, e.g. when using getResourcesForApplication().
This fixes an issue with ic_text_dot theming and helps avoid similar
issues in the future.

BUG: 17648301
Change-Id: I3e97c3490b6f2a55744f567b21284f2935ae9af7

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

@@ -144,7 +144,7 @@ public class ApplicationsState {
                     return true;
                 } else {
                     this.mounted = false;
-                    this.icon = context.getResources().getDrawable(
+                    this.icon = context.getDrawable(
                             com.android.internal.R.drawable.sym_app_on_sd_unavailable_icon);
                 }
             } else if (!this.mounted) {