VR: Update UiSceneManager with screen capturing flag

chrome/browser/android/vr_shell/ui_scene_manager.cc

Index: chrome/browser/android/vr_shell/ui_scene_manager.cc
diff --git a/chrome/browser/android/vr_shell/ui_scene_manager.cc b/chrome/browser/android/vr_shell/ui_scene_manager.cc
index 32efa09a4e6ab84ebb23c085b7020add7e804e47..36ffb6718652d53745b2f52e8c65b298ea2bddb0 100644
--- a/chrome/browser/android/vr_shell/ui_scene_manager.cc
+++ b/chrome/browser/android/vr_shell/ui_scene_manager.cc
@@ -359,7 +359,7 @@ void UiSceneManager::SetVideoCapturingIndicator(bool 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) {