Fix build

BUG: 25302006

Change-Id: Ida51797affe65ce2597c03f8e4688ca31b8aff09
diff --git a/design/api/current.txt b/design/api/current.txt
index 3e946d7..84bf8ce 100644
--- a/design/api/current.txt
+++ b/design/api/current.txt
@@ -449,7 +449,7 @@
     method public boolean setTopAndBottomOffset(int);
   }
 
-   class VisibilityAwareImageButton extends android.support.v7.widget.AppCompatImageButton {
+   class VisibilityAwareImageButton extends android.widget.ImageButton {
     ctor public VisibilityAwareImageButton(android.content.Context);
     ctor public VisibilityAwareImageButton(android.content.Context, android.util.AttributeSet);
     ctor public VisibilityAwareImageButton(android.content.Context, android.util.AttributeSet, int);