mus: Let clients set the cursor of their window.

components/mus/ws/connection_manager.cc

Index: components/mus/ws/connection_manager.cc
diff --git a/components/mus/ws/connection_manager.cc b/components/mus/ws/connection_manager.cc
index 3c8bea5c1aa646153857d713339b7c5d663dc5d5..0fec1f90d24b31f3dbb9d3ea1595ade72c13eaaa 100644
--- a/components/mus/ws/connection_manager.cc
+++ b/components/mus/ws/connection_manager.cc
@@ -468,6 +468,22 @@ void ConnectionManager::OnWillChangeWindowVisibility(ServerWindow* window) {
   }
 }
 
+void ConnectionManager::OnWindowCursorChanged(ServerWindow* window,
+                                              int32_t cursor_id) {
+  if (in_destructor_)
+    return;
+
+  for (auto& pair : connection_map_) {
+    pair.second->service()->ProcessCursorChanged(
+        window, cursor_id, IsOperationSource(pair.first));
+  }
+
+  // Pass the cursor change to our native window.

[sky, 2015/12/01 21:48:00]

out->the (as there may be more than one native window).

[Elliot Glaysher, 2015/12/02 20:01:32]

Done.

+  WindowTreeHostImpl* host = GetWindowTreeHostByWindow(window);
+  if (host)
+    host->OnCursorUpdated(window);
+}
+
 void ConnectionManager::OnWindowSharedPropertyChanged(
     ServerWindow* window,
     const std::string& name,