mus: Introduce high-contrast mode in mus.

services/ui/ws/test_utils.cc

 // Copyright 2016 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/test_utils.h"
 
 #include "base/memory/ptr_util.h"
 #include "cc/output/copy_output_request.h"
 #include "services/shell/public/interfaces/connector.mojom.h"
 #include "services/ui/surfaces/surfaces_state.h"
@@ skipping 102 matching lines @@
 TestFrameGeneratorDelegate::TestFrameGeneratorDelegate(
     std::unique_ptr<ServerWindow> root)
     : root_(std::move(root)) {}
 
 TestFrameGeneratorDelegate::~TestFrameGeneratorDelegate() {}
 
 ServerWindow* TestFrameGeneratorDelegate::GetRootWindow() {
   return root_.get();
 }
 
+bool TestFrameGeneratorDelegate::IsInHighContrastMode() {
+  return false;
+}
+
 const ViewportMetrics& TestFrameGeneratorDelegate::GetViewportMetrics() {
   return metrics_;
 }
 
 // WindowTreeTestApi  ---------------------------------------------------------
 
 WindowTreeTestApi::WindowTreeTestApi(WindowTree* tree) : tree_(tree) {}
 WindowTreeTestApi::~WindowTreeTestApi() {}
 
 void WindowTreeTestApi::SetEventObserver(mojom::EventMatcherPtr matcher,
@@ skipping 380 matching lines @@
     return nullptr;
   if (!tree->AddWindow(parent_client_id, client_window_id))
     return nullptr;
   *client_id = client_window_id;
   return tree->GetWindowByClientId(client_window_id);
 }
 
 }  // namespace test
 }  // namespace ws
 }  // namespace ui