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
diff --git a/src/com/android/settings/MasterClear.java b/src/com/android/settings/MasterClear.java
index bbd98fb..6a0a249 100644
--- a/src/com/android/settings/MasterClear.java
+++ b/src/com/android/settings/MasterClear.java
@@ -212,7 +212,7 @@
             try {
                 if (desc.iconId != 0) {
                     Context authContext = context.createPackageContext(desc.packageName, 0);
-                    icon = authContext.getResources().getDrawable(desc.iconId);
+                    icon = authContext.getDrawable(desc.iconId);
                 }
             } catch (PackageManager.NameNotFoundException e) {
                 Log.w(TAG, "No icon for account type " + desc.type);