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

ui/native_theme/native_theme_mac.mm

Index: ui/native_theme/native_theme_mac.mm
diff --git a/ui/native_theme/native_theme_mac.mm b/ui/native_theme/native_theme_mac.mm
index c6c79f7dc94eadfb475ba8917551248bc3398673..bf599b1c07b055eb7aab6be315abf61925cdee9b 100644
--- a/ui/native_theme/native_theme_mac.mm
+++ b/ui/native_theme/native_theme_mac.mm
@@ -211,6 +211,8 @@ SkColor NativeThemeMac::GetSystemColor(ColorId color_id) const {
       return NSSystemColorToSkColor([NSColor textBackgroundColor]);
     case kColorId_TextfieldSelectionColor:
       return NSSystemColorToSkColor([NSColor selectedTextColor]);
+    case kColorId_TextfieldSelectionBackgroundUnfocused:
+      return kUnfocusedSelectedTextBackgroundColor;
 
     // Trees/Tables. For focused text, use the alternate* versions, which
     // NSColor documents as "the table and list view equivalent to the