[vr] Clicking on the security icon should prompt the user to bail out of VR

chrome/browser/android/vr_shell/ui_scene.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 "chrome/browser/android/vr_shell/ui_scene.h"
 
 #include <string>
 #include <utility>
 
 #include "base/memory/ptr_util.h"
@@ skipping 194 matching lines @@
 }
 
 void UiScene::SetWebVrRenderingEnabled(bool enabled) {
   webvr_rendering_enabled_ = enabled;
 }
 
 void UiScene::set_is_exiting() {
   is_exiting_ = true;
 }
 
+void UiScene::set_is_prompting_to_exit(bool prompting) {
+  is_prompting_to_exit_ = prompting;
+}
+
 const std::vector<std::unique_ptr<UiElement>>& UiScene::GetUiElements() const {
   return ui_elements_;
 }
 
 UiScene::UiScene() = default;
 
 UiScene::~UiScene() = default;
 
 void UiScene::ApplyRecursiveTransforms(UiElement* element) {
   if (!element->dirty())
@@ skipping 37 matching lines @@
 
 // TODO(mthiesse): Move this to UiSceneManager.
 void UiScene::OnGLInitialized() {
   gl_initialized_ = true;
   for (auto& element : ui_elements_) {
     element->Initialize();
   }
 }
 
 }  // namespace vr_shell