VR: Wire VrShell UI-related state to the scene manager.

chrome/browser/android/vr_shell/ui_scene_manager.h

Index: chrome/browser/android/vr_shell/ui_scene_manager.h
diff --git a/chrome/browser/android/vr_shell/ui_scene_manager.h b/chrome/browser/android/vr_shell/ui_scene_manager.h
index 88dc52e140c042c89d40fbec391122378e0d9beb..38e15ded9c7ce1cbc767f0022d9a2d156e9b2df8 100644
--- a/chrome/browser/android/vr_shell/ui_scene_manager.h
+++ b/chrome/browser/android/vr_shell/ui_scene_manager.h
@@ -9,7 +9,9 @@
 #include "base/memory/weak_ptr.h"
 #include "base/timer/timer.h"
 #include "base/values.h"
-#include "url/gurl.h"
+#include "chrome/browser/android/vr_shell/ui_interface.h"
+
+class GURL;
 
 namespace vr_shell {
 
@@ -27,9 +29,15 @@ class UiSceneManager {
 
   void SetWebVRSecureOrigin(bool secure);
   void SetWebVRMode(bool web_vr);
+  void SetURL(const GURL& gurl);
+  void SetFullscreen(bool enabled);

[ymalik, 2017/05/08 14:05:00]

nit: add a comment here or somewhere mentioning that most of these are unused
currently or will be used in future CLs?

[cjgrant, 2017/05/08 14:14:37]

Sure, but that future will be in the next 2 days. :)

[cjgrant, 2017/05/08 19:17:22]

Done.

+  void SetSecurityLevel(int level);
+  void SetLoading(bool loading);
+  void SetLoadProgress(double progress);
+  void SetHistoryButtonsEnabled(bool can_go_back, bool can_go_forward);
 
   void OnAppButtonClicked();
-  void OnUrlChange(const GURL& gurl);
+  void OnAppButtonGesturePerformed(UiInterface::Direction direction);
 
  private:
   void CreateSecurityWarnings();