chromeos: converts observed pointer events to DIPs

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 4a2cb7d666377afd90156bd1183b542e4877b8d9..e9cba22b3b5c0a044759cd18863540d4c58af166 100644
--- a/services/ui/ws/window_server.cc
+++ b/services/ui/ws/window_server.cc
@@ -425,11 +425,12 @@ void WindowServer::ProcessWillChangeWindowPredefinedCursor(
 void WindowServer::SendToPointerWatchers(const ui::Event& event,
                                          const UserId& user_id,
                                          ServerWindow* target_window,
-                                         WindowTree* ignore_tree) {
+                                         WindowTree* ignore_tree,
+                                         int64_t display_id) {

[sadrul, 2017/02/09 02:27:45]

Can this figure out the display-id here from |target_window|, isntead of taking
it in as an input?

... although I guess since we already have this info from the calling code,
might as well use that instead of recomputing here?

[sky, 2017/02/09 17:06:20]

See my earlier comment as to why this passes in the display_id.

   for (auto& pair : tree_map_) {
     WindowTree* tree = pair.second.get();
     if (tree->user_id() == user_id && tree != ignore_tree)
-      tree->SendToPointerWatcher(event, target_window);
+      tree->SendToPointerWatcher(event, target_window, display_id);
   }
 }