mus: Add watcher for all touch events.

services/ui/ws/window_tree_client_unittest.cc

Index: services/ui/ws/window_tree_client_unittest.cc
diff --git a/services/ui/ws/window_tree_client_unittest.cc b/services/ui/ws/window_tree_client_unittest.cc
index 31c0d683ab35c84e9c49af6e4e0cb51be4f22377..39cc5b8155966cf3a535c5af754535b3c18e90d1 100644
--- a/services/ui/ws/window_tree_client_unittest.cc
+++ b/services/ui/ws/window_tree_client_unittest.cc
@@ -349,7 +349,7 @@ class TestWindowTreeClient : public mojom::WindowTreeClient,
   void OnWindowInputEvent(uint32_t event_id,
                           Id window_id,
                           std::unique_ptr<ui::Event> event,
-                          uint32_t event_observer_id) override {
+                          mojo::Array<uint32_t> event_observer_id) override {
     // Ack input events to clear the state on the server. These can be received
     // during test startup. X11Window::DispatchEvent sends a synthetic move
     // event to notify of entry.
@@ -358,7 +358,7 @@ class TestWindowTreeClient : public mojom::WindowTreeClient,
     // may come in at random points.
   }
   void OnEventObserved(std::unique_ptr<ui::Event>,
-                       uint32_t event_observer_id) override {}
+                       mojo::Array<uint32_t> event_observer_id) override {}
   void OnWindowSharedPropertyChanged(uint32_t window,
                                      const String& name,
                                      Array<uint8_t> new_data) override {