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

services/ui/ws/window_tree_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "services/ui/ws/window_tree.h"
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
@@ skipping 994 matching lines @@
   EXPECT_EQ(owning_tree, wm_state_test_api.tree_awaiting_input_ack());
   AckPreviousEvent();
 
   // Set capture from the embedded client and make sure it gets the event.
   ASSERT_TRUE(
       embed_tree->SetCapture(ClientWindowIdForWindow(embed_tree, window)));
   DispatchEventWithoutAck(CreateMouseMoveEvent(22, 23));
   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