Fixing issue with canceling the thumbnail in addition to the app window.

Bug: 25392381
Change-Id: Ib507f53bcd2aad4771c2546f5e8bfe771769e9a2
diff --git a/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java b/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
index 524aa9b..3c260a8 100644
--- a/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
+++ b/tools/layoutlib/bridge/src/android/view/IWindowManagerImpl.java
@@ -535,6 +535,10 @@
     }
 
     @Override
+    public void cancelTaskThumbnailTransition(int taskId) {
+    }
+
+    @Override
     public void endProlongedAnimations() {
     }
 }