[vr] Migrate from vr::Colorf to SkColor

chrome/browser/android/vr_shell/ui_scene.h

Index: chrome/browser/android/vr_shell/ui_scene.h
diff --git a/chrome/browser/android/vr_shell/ui_scene.h b/chrome/browser/android/vr_shell/ui_scene.h
index 5a313fd1f0d933326c3e13b283a7deec4087fbe1..119fec7041dcf33c9df0bf69e05f7bc5ad355d49 100644
--- a/chrome/browser/android/vr_shell/ui_scene.h
+++ b/chrome/browser/android/vr_shell/ui_scene.h
@@ -11,7 +11,7 @@
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/android/vr_shell/ui_elements/ui_element_debug_id.h"
-#include "device/vr/vr_types.h"
+#include "third_party/skia/include/core/SkColor.h"
 
 namespace base {
 class ListValue;
@@ -66,8 +66,8 @@ class UiScene {
   std::vector<const UiElement*> GetHeadLockedElements() const;
   bool HasVisibleHeadLockedElements() const;
 
-  void SetBackgroundColor(const vr::Colorf& color);
-  const vr::Colorf& GetBackgroundColor() const;
+  void SetBackgroundColor(const SkColor& color);
+  const SkColor& GetBackgroundColor() const;
   void SetBackgroundDistance(float distance);
   float GetBackgroundDistance() const;
 
@@ -85,7 +85,7 @@ class UiScene {
 
   std::vector<std::unique_ptr<UiElement>> ui_elements_;
   UiElement* content_element_ = nullptr;
-  vr::Colorf background_color_ = {0.1f, 0.1f, 0.1f, 1.0f};
+  SkColor background_color_ = 0xFF1A1A1A;
   float background_distance_ = 10.0f;
   bool webvr_rendering_enabled_ = true;
   bool gl_initialized_ = false;