VR: Update UiSceneManager with screen capturing flag

chrome/browser/android/vr_shell/ui_scene_manager.cc

 // Copyright 2017 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_manager.h"
 
 #include "base/callback.h"
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/android/vr_shell/textures/close_button_texture.h"
 #include "chrome/browser/android/vr_shell/textures/ui_texture.h"
@@ skipping 341 matching lines @@
 
 void UiSceneManager::SetAudioCapturingIndicator(bool enabled) {
   audio_capture_indicator_->set_visible(enabled);
 }
 
 void UiSceneManager::SetVideoCapturingIndicator(bool enabled) {
   video_capture_indicator_->set_visible(enabled);
 }
 
 void UiSceneManager::SetScreenCapturingIndicator(bool enabled) {
-  // TODO(asimjour) add the indicator and change the visibility here.
+  screen_capture_indicator_->set_visible(enabled);

[cjgrant, 2017/05/23 19:16:23]

I think you need to cover the WebVR case, where these would be head-locked and
positioned somewhere relative to the field of view (rather than world).  You'll
probably want to do something like the security warnings, where the elements are
configured based on both the "enabled" flag being set, and the webvr flag being
set.  Same question for full-screen mode I guess (Adam is perpetually fixing
full-screen mode). :)

 }
 
 void UiSceneManager::SetWebVrSecureOrigin(bool secure) {
   secure_origin_ = secure;
   ConfigureSecurityWarnings();
 }
 
 void UiSceneManager::OnAppButtonClicked() {
   // App button click exits the WebVR presentation and fullscreen.
   browser_->ExitPresent();
@@ skipping 59 matching lines @@
 
 void UiSceneManager::OnCloseButtonClicked() {
   browser_->ExitCct();
 }
 
 int UiSceneManager::AllocateId() {
   return next_available_id_++;
 }
 
 }  // namespace vr_shell