Update Windows UI on system color changes.

ui/native_theme/native_theme_win.h

Index: ui/native_theme/native_theme_win.h
diff --git a/ui/native_theme/native_theme_win.h b/ui/native_theme/native_theme_win.h
index 408818fb657cd50a8bf7268d7bd7c23b37fc66fa..d2ee5503db2b68370fb11c06e53c92e7b68e2658 100644
--- a/ui/native_theme/native_theme_win.h
+++ b/ui/native_theme/native_theme_win.h
@@ -20,7 +20,6 @@
 #include "base/compiler_specific.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/size.h"
-#include "ui/gfx/sys_color_change_listener.h"
 #include "ui/native_theme/native_theme.h"
 
 class SkCanvas;
@@ -33,8 +32,7 @@ namespace ui {
 // of several PaintXXX methods to an API, inherited from the NativeTheme base
 // class, that consists of a single Paint() method with a argument to indicate
 // what kind of part to paint.
-class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme,
-                                           public gfx::SysColorChangeListener {
+class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme {
  public:
   enum ThemeName {
     BUTTON,
@@ -114,13 +112,14 @@ class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme,
                      const ExtraParams& extra) const OVERRIDE;
   virtual SkColor GetSystemColor(ColorId color_id) const OVERRIDE;
 
+ protected:
+  // gfx::SysColorChangeListener implementation:
+  virtual void OnSysColorChange() OVERRIDE;
+
  private:
   NativeThemeWin();
   ~NativeThemeWin();
 
-  // gfx::SysColorChangeListener implementation:
-  virtual void OnSysColorChange() OVERRIDE;
-
   // Update the locally cached set of system colors.
   void UpdateSystemColors();
 
@@ -355,8 +354,7 @@ class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme,
   // A cache of open theme handles.
   mutable HANDLE theme_handles_[LAST];
 
-  // The system color change listener and the updated cache of system colors.
-  gfx::ScopedSysColorChangeListener color_change_listener_;
+  // The cache of system colors.
   mutable std::map<int, SkColor> system_colors_;
 
   // Is a high contrast theme active?