Calculator multiwindow support.

Bug: 27906424
Change-Id: I9b9bf40be9909ce5def5762e69a21dd1ff94075b
diff --git a/src/com/android/calculator2/CalculatorDisplay.java b/src/com/android/calculator2/CalculatorDisplay.java
index 8d704cf..d7b0f8f 100644
--- a/src/com/android/calculator2/CalculatorDisplay.java
+++ b/src/com/android/calculator2/CalculatorDisplay.java
@@ -25,10 +25,10 @@
 import android.view.MotionEvent;
 import android.view.View;
 import android.view.accessibility.AccessibilityManager;
-import android.widget.RelativeLayout;
+import android.widget.LinearLayout;
 import android.widget.Toolbar;
 
-public class CalculatorDisplay extends RelativeLayout
+public class CalculatorDisplay extends LinearLayout
         implements AccessibilityManager.AccessibilityStateChangeListener {
 
     /**