Adding utility method to get adaptive icon scale

Change-Id: I5ff190c3b794bb13309375782ccd420e85b59091

src/com/android/launcher3/MainProcessInitializer.java

@@ -19,7 +19,7 @@ package com.android.launcher3;
 import android.content.Context;
 
 import com.android.launcher3.config.FeatureFlags;
-import com.android.launcher3.folder.FolderShape;
+import com.android.launcher3.graphics.IconShape;
 import com.android.launcher3.logging.FileLog;
 import com.android.launcher3.util.ResourceBasedOverride;
 
@@ -38,6 +38,6 @@ public class MainProcessInitializer implements ResourceBasedOverride {
         FileLog.setDir(context.getApplicationContext().getFilesDir());
         FeatureFlags.initialize(context);
         SessionCommitReceiver.applyDefaultUserPrefs(context);
-        FolderShape.init(context);
+        IconShape.init(context);
     }
 }