Adding utility method to get adaptive icon scale

Change-Id: I5ff190c3b794bb13309375782ccd420e85b59091
diff --git a/src/com/android/launcher3/folder/PreviewBackground.java b/src/com/android/launcher3/folder/PreviewBackground.java
index 46df77a..09e8276 100644
--- a/src/com/android/launcher3/folder/PreviewBackground.java
+++ b/src/com/android/launcher3/folder/PreviewBackground.java
@@ -16,7 +16,7 @@
 
 package com.android.launcher3.folder;
 
-import static com.android.launcher3.folder.FolderShape.getShape;
+import static com.android.launcher3.graphics.IconShape.getShape;
 import static com.android.launcher3.icons.GraphicsUtils.setColorAlphaBound;
 
 import android.animation.Animator;
@@ -311,7 +311,7 @@
 
     public Path getClipPath() {
         mPath.reset();
-        getShape().addShape(mPath, getOffsetX(), getOffsetY(), getScaledRadius());
+        getShape().addToPath(mPath, getOffsetX(), getOffsetY(), getScaledRadius());
         return mPath;
     }