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

services/ui/public/cpp/tests/test_window_tree.cc

 // Copyright 2015 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/public/cpp/tests/test_window_tree.h"
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace ui {
 
@@ skipping 146 matching lines @@
 }
 
 void TestWindowTree::GetWindowManagerClient(
     mojo::AssociatedInterfaceRequest<mojom::WindowManagerClient> internal) {}
 
 void TestWindowTree::GetCursorLocationMemory(
     const GetCursorLocationMemoryCallback& callback) {
   callback.Run(mojo::ScopedSharedBufferHandle());
 }
 
+void TestWindowTree::SetAcceptEvents(uint32_t window_id, bool accept_events) {}
+
 }  // namespace ui