Use native theme colors for textfields; etc.

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 1e83d1565bb17a9d0652dc4cd0b0bfb3295271bf..c0481af913cb327c89baec6fe164ddf9637d6008 100644
--- a/ui/native_theme/native_theme_win.h
+++ b/ui/native_theme/native_theme_win.h
@@ -11,6 +11,7 @@
 // For more information on visual style parts and states, see:
 // http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/commctls/userex/topics/partsandstates.asp
 
+#include <map>
 #include <windows.h>
 #include <uxtheme.h>
 
@@ -96,7 +97,7 @@ class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme {
                          bool fill_content_area,
                          bool draw_edges) const;
 
-  // NativeTheme Implementation:
+  // NativeTheme implementation:
   virtual gfx::Size GetPartSize(Part part,
                                 State state,
                                 const ExtraParams& extra) const OVERRIDE;
@@ -314,6 +315,9 @@ class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme {
                                            int prop_id,
                                            int *value);
 
+  // gfx::SysColorChangeListener implementation:
+  virtual void OnSysColorChange() OVERRIDE;
+
   // Function pointers into uxtheme.dll.
   DrawThemeBackgroundPtr draw_theme_;
   DrawThemeBackgroundExPtr draw_theme_ex_;
@@ -332,6 +336,9 @@ class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme {
   // A cache of open theme handles.
   mutable HANDLE theme_handles_[LAST];
 
+  // A map of cached and updated system colors.
+  mutable std::map<int, SkColor> system_colors_;
+
   DISALLOW_COPY_AND_ASSIGN(NativeThemeWin);
 };