[vr] Add incognito coloring

chrome/browser/android/vr_shell/ui_interface.h

 // 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.
 
 #ifndef CHROME_BROWSER_ANDROID_VR_SHELL_UI_INTERFACE_H_
 #define CHROME_BROWSER_ANDROID_VR_SHELL_UI_INTERFACE_H_
 
 class GURL;
 
 namespace vr_shell {
 
 // This class manages the communication of browser state from VR shell to the
 // HTML UI. State information is asynchronous and unidirectional.
 class UiInterface {
  public:
   enum Direction {
     NONE = 0,
     LEFT,
     RIGHT,
     UP,
     DOWN,
   };
 
   virtual ~UiInterface() {}
 
   virtual void SetWebVrMode(bool enabled) = 0;
   virtual void SetURL(const GURL& url) = 0;
   virtual void SetFullscreen(bool enabled) = 0;
+  virtual void SetIncognito(bool enabled) = 0;
   virtual void SetSecurityLevel(int level) = 0;
   virtual void SetWebVrSecureOrigin(bool secure) = 0;
   virtual void SetLoading(bool loading) = 0;
   virtual void SetLoadProgress(float progress) = 0;
   virtual void SetIsExiting() = 0;
   virtual void SetHistoryButtonsEnabled(bool can_go_back,
                                         bool can_go_forward) = 0;
   virtual void SetVideoCapturingIndicator(bool enabled) = 0;
   virtual void SetScreenCapturingIndicator(bool enabled) = 0;
   virtual void SetAudioCapturingIndicator(bool enabled) = 0;
 
   // Tab handling.
   virtual void InitTabList() {}
   virtual void AppendToTabList(bool incognito,
                                int id,
                                const base::string16& title) {}
   virtual void FlushTabList() {}
   virtual void UpdateTab(bool incognito, int id, const std::string& title) {}
   virtual void RemoveTab(bool incognito, int id) {}
 };
 
 }  // namespace vr_shell
 
 #endif  // CHROME_BROWSER_ANDROID_VR_SHELL_UI_INTERFACE_H_