Views: Draw Textfield selected text in gray when top-level Widget loses focus.

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 fa2c82ce608fe55a610904f8a99c81202d8c8b56..1c982de871dd4677a51ed275c0608d43e726310c 100644
--- a/ui/native_theme/native_theme_win.h
+++ b/ui/native_theme/native_theme_win.h
@@ -286,6 +286,10 @@ class NATIVE_THEME_EXPORT NativeThemeWin : public NativeTheme,
   static int GetWindowsPart(Part part, State state, const ExtraParams& extra);
   static int GetWindowsState(Part part, State state, const ExtraParams& extra);
 
+  // Get the color used for showing the last selection before focus was moved

[msw, 2016/11/09 02:08:53]

nit: avoid over-specializing the comment regarding the movement of focus (it's
not necessarily true that the control was ever focused before). eg. "Get the
color used for showing a selection within an unfocused control."

+  // away. Used for text, tree, and table selections.
+  SkColor GetUnfocusedSelectionBackgroundColor() const;
+
   HRESULT GetThemeInt(ThemeName theme,
                       int part_id,
                       int state_id,