Adding support for dynamically change icon shape for AdaptiveIcons

am: ca18746163

Change-Id: Ic4c14ad1760930735a881926aac8b45efe0cdba0

src/com/android/launcher3/util/SQLiteCacheHelper.java

@@ -83,6 +83,10 @@ public abstract class SQLiteCacheHelper {
                 mTableName, columns, selection, selectionArgs, null, null, null);
     }
 
+    public void clear() {
+        mOpenHelper.clearDB(mOpenHelper.getWritableDatabase());
+    }
+
     protected abstract void onCreateTable(SQLiteDatabase db);
 
     /**