Fix build.

Change-Id: I4be1b58cb5348ffe8b6dd5b1a2c612de737d0d91
diff --git a/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java b/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
index 62859ec..a8fd91c 100644
--- a/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
+++ b/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
@@ -30,6 +30,7 @@
 import android.os.IRemoteCallback;
 import android.os.RemoteException;
 import android.util.DisplayMetrics;
+import android.view.AppTransitionAnimationSpec;
 
 import java.lang.Override;
 
@@ -241,6 +242,12 @@
     }
 
     @Override
+    public void overridePendingAppTransitionMultiThumb(AppTransitionAnimationSpec[] specs,
+            IRemoteCallback callback, boolean scaleUp) {
+        // TODO Auto-generated method stub
+    }
+
+    @Override
     public void pauseKeyDispatching(IBinder arg0) throws RemoteException {
         // TODO Auto-generated method stub