Use native theme colors for textfields; etc.

ui/native_theme/native_theme.h

Index: ui/native_theme/native_theme.h
diff --git a/ui/native_theme/native_theme.h b/ui/native_theme/native_theme.h
index ed3ed35f50526370dac5306cab0018a1202e06be..a0955801f0248c8fbc73d7527c2e1d9ad1bf408f 100644
--- a/ui/native_theme/native_theme.h
+++ b/ui/native_theme/native_theme.h
@@ -5,8 +5,10 @@
 #ifndef UI_NATIVE_THEME_NATIVE_THEME_H_
 #define UI_NATIVE_THEME_NATIVE_THEME_H_
 
+#include "base/compiler_specific.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/sys_color_change_listener.h"
 #include "ui/native_theme/native_theme_export.h"
 
 class SkCanvas;
@@ -35,7 +37,7 @@ namespace ui {
 //
 // NativeTheme also supports getting the default size of a given part with
 // the GetPartSize() method.
-class NATIVE_THEME_EXPORT NativeTheme {
+class NATIVE_THEME_EXPORT NativeTheme : public gfx::SysColorChangeListener {

[sky, 2012/12/04 22:38:14]

Since only windows actually implement OnSysColorChange(), can we move this to
NativeThemeWin?

[msw, 2012/12/05 02:09:56]

Done.

  public:
   // The part to be painted / sized.
   enum Part {
@@ -243,6 +245,8 @@ class NATIVE_THEME_EXPORT NativeTheme {
     // Textfield
     kColorId_TextfieldDefaultColor,
     kColorId_TextfieldDefaultBackground,
+    kColorId_TextfieldReadOnlyColor,
+    kColorId_TextfieldReadOnlyBackground,
     kColorId_TextfieldSelectionColor,
     kColorId_TextfieldSelectionBackgroundFocused,
     kColorId_TextfieldSelectionBackgroundUnfocused,
@@ -263,7 +267,12 @@ class NATIVE_THEME_EXPORT NativeTheme {
 
  protected:
   NativeTheme();
-  virtual ~NativeTheme() {}
+  virtual ~NativeTheme();
+
+  // gfx::SysColorChangeListener implementation:
+  virtual void OnSysColorChange() OVERRIDE;
+
+  gfx::ScopedSysColorChangeListener color_change_listener_;
 
   unsigned int thumb_inactive_color_;
   unsigned int thumb_active_color_;