Fix build

Change-Id: Ifed64dc2a4db9a58c3588ea0ca899f628efe685a
diff --git a/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java b/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
index 38eb5ee..2560c31 100644
--- a/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
+++ b/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
@@ -557,4 +557,8 @@
     @Override
     public void requestAppKeyboardShortcuts(IResultReceiver receiver) throws RemoteException {
     }
+
+    @Override
+    public void getStableInsets(Rect outInsets) throws RemoteException {
+    }
 }