Add full touch support to mus.

services/ui/ws/window_server_delegate.h

Index: services/ui/ws/window_server_delegate.h
diff --git a/services/ui/ws/window_server_delegate.h b/services/ui/ws/window_server_delegate.h
index 717c512871ce4db904dce7608135d9c7af8ca98e..337cc3880e2757f5df8055a089ad27a6239383ae 100644
--- a/services/ui/ws/window_server_delegate.h
+++ b/services/ui/ws/window_server_delegate.h
@@ -44,10 +44,6 @@ class WindowServerDelegate {
 
   virtual bool IsTestConfig() const = 0;
 
-  // Called when touchscreen coordinate transforms should be updated. For
-  // example when displays or touch input devices are added/removed.
-  virtual void UpdateTouchTransforms() = 0;
-
   // Creates a WindowTreeBinding. Default implementation returns null, which
   // creates DefaultBinding.
   virtual std::unique_ptr<WindowTreeBinding> CreateWindowTreeBinding(