[vr] Introduce ColorScheme

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 cf2ae941d42dc9c93de0a9808811bddd41b82564..6a0cec9b7de630ae59e97a81ad783042f03ff609 100644
--- a/chrome/browser/android/vr_shell/ui_scene_manager.h
+++ b/chrome/browser/android/vr_shell/ui_scene_manager.h
@@ -22,6 +22,8 @@ class UiScene;
 class UrlBar;
 class VrBrowserInterface;
 
+struct ColorScheme;
+
 class UiSceneManager {
  public:
   UiSceneManager(VrBrowserInterface* browser,
@@ -40,12 +42,13 @@ class UiSceneManager {
   void SetLoading(bool loading);
   void SetLoadProgress(float progress);
   void SetIsExiting();
-  // These methods are currently stubbed.
-  void SetHistoryButtonsEnabled(bool can_go_back, bool can_go_forward);
   void SetVideoCapturingIndicator(bool enabled);
   void SetScreenCapturingIndicator(bool enabled);
   void SetAudioCapturingIndicator(bool enabled);
 
+  // These methods are currently stubbed.
+  void SetHistoryButtonsEnabled(bool can_go_back, bool can_go_forward);
+
   void OnAppButtonClicked();
   void OnAppButtonGesturePerformed(UiInterface::Direction direction);
 
@@ -60,13 +63,13 @@ class UiSceneManager {
   void CreateExitWarning();
 
   void ConfigureScene();
-  void ConfigureBackgroundColor(vr::Colorf center_color,
-                                vr::Colorf horizon_color);
   void ConfigureSecurityWarnings();
+  void UpdateBackgroundColor();
   void OnSecurityWarningTimer();
   void OnBackButtonClicked();
   void OnCloseButtonClicked();
   int AllocateId();
+  const ColorScheme& color_scheme() const;
 
   VrBrowserInterface* browser_;
   UiScene* scene_;