Adding PIP input consumer.

- This CL provides the framework for manipulating the pinned stack using
  an input policy (to be determined later) provided by the SystemUI.

Test: android.server.cts.ActivityManagerPinnedStackTests
Test: #testNonTappablePipActivity

Change-Id: I025c41fff26ed05a35d68e59f10330680ed11ea8
diff --git a/bridge/src/android/view/IWindowManagerImpl.java b/bridge/src/android/view/IWindowManagerImpl.java
index f4f92ec..09ab657 100644
--- a/bridge/src/android/view/IWindowManagerImpl.java
+++ b/bridge/src/android/view/IWindowManagerImpl.java
@@ -612,10 +612,13 @@
         throws RemoteException {}
 
     @Override
-    public void createWallpaperInputConsumer(InputChannel inputChannel) throws RemoteException {}
+    public void createInputConsumer(String name, InputChannel inputChannel)
+            throws RemoteException {}
 
     @Override
-    public void removeWallpaperInputConsumer() throws RemoteException {}
+    public boolean destroyInputConsumer(String name) throws RemoteException {
+        return false;
+    }
 
     @Override
     public Bitmap screenshotWallpaper() throws RemoteException {