mus: Disregard windows that explicitly set can_accept_events to be false when sending events.

services/ui/ws/window_tree_unittest.cc

Index: services/ui/ws/window_tree_unittest.cc
diff --git a/services/ui/ws/window_tree_unittest.cc b/services/ui/ws/window_tree_unittest.cc
index da3be86bcf4d617758b85559d40fbc5a397267cd..beab0b55a0c67ba718522dd54d325fc480137898 100644
--- a/services/ui/ws/window_tree_unittest.cc
+++ b/services/ui/ws/window_tree_unittest.cc
@@ -1012,6 +1012,17 @@ TEST_F(WindowTreeTest, SetCaptureTargetsRightConnection) {
   EXPECT_EQ(embed_tree, wm_state_test_api.tree_awaiting_input_ack());
 }
 
+TEST_F(WindowTreeTest, SetAcceptEvents) {
+  TestWindowTreeClient* embed_client = nullptr;
+  WindowTree* tree = nullptr;
+  ServerWindow* window = nullptr;
+  EXPECT_NO_FATAL_FAILURE(SetupEventTargeting(&embed_client, &tree, &window));
+
+  EXPECT_EQ(true, window->AcceptEvents());
+  tree->SetAcceptEvents(ClientWindowIdForWindow(tree, window).id, false);
+  EXPECT_EQ(false, window->AcceptEvents());
+}
+
 }  // namespace test
 }  // namespace ws
 }  // namespace ui