mus: Change PointerWatcher to observe all pointer events, with moves optional.

services/ui/ws/window_server.cc

Index: services/ui/ws/window_server.cc
diff --git a/services/ui/ws/window_server.cc b/services/ui/ws/window_server.cc
index 8403378fe7ed0275a8be8fa4e1d41901baadf821..29b3b55d43b8ea80dc8603093c890923a54a7192 100644
--- a/services/ui/ws/window_server.cc
+++ b/services/ui/ws/window_server.cc
@@ -426,13 +426,13 @@ void WindowServer::ProcessWillChangeWindowPredefinedCursor(ServerWindow* window,
   }
 }
 
-void WindowServer::SendToEventObservers(const ui::Event& event,
-                                        const UserId& user_id,
-                                        WindowTree* ignore_tree) {
+void WindowServer::SendToPointerWatchers(const ui::Event& event,
+                                         const UserId& user_id,
+                                         WindowTree* ignore_tree) {
   for (auto& pair : tree_map_) {
     WindowTree* tree = pair.second.get();
     if (tree->user_id() == user_id && tree != ignore_tree)
-      tree->SendToEventObserver(event);
+      tree->SendToPointerWatcher(event);
   }
 }