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 36a58dc1d810ba40479bf2b03a421c9b16c67f28..80a0f2e8b25776d2527e53a38ad18b888e92fa81 100644
--- a/ui/native_theme/native_theme_mac.mm
+++ b/ui/native_theme/native_theme_mac.mm
@@ -219,6 +219,8 @@ 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