Making some view properties exported.
These will be visible in hierarchy viewer

Change-Id: I940724a7f61d67b8502d77be203a94875bc92668
diff --git a/src/com/android/launcher3/InsettableFrameLayout.java b/src/com/android/launcher3/InsettableFrameLayout.java
index 7343bf6..f4bfa45 100644
--- a/src/com/android/launcher3/InsettableFrameLayout.java
+++ b/src/com/android/launcher3/InsettableFrameLayout.java
@@ -5,12 +5,14 @@
 import android.graphics.Rect;
 import android.util.AttributeSet;
 import android.view.View;
+import android.view.ViewDebug;
 import android.view.ViewGroup;
 import android.widget.FrameLayout;
 
 public class InsettableFrameLayout extends FrameLayout implements
     ViewGroup.OnHierarchyChangeListener, Insettable {
 
+    @ViewDebug.ExportedProperty(category = "launcher")
     protected Rect mInsets = new Rect();
 
     public InsettableFrameLayout(Context context, AttributeSet attrs) {