[Autofill] Remove AutofillPopupController::IsWarning()

chrome/browser/ui/cocoa/autofill/autofill_popup_view_cocoa.mm

Index: chrome/browser/ui/cocoa/autofill/autofill_popup_view_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/autofill/autofill_popup_view_cocoa.mm b/chrome/browser/ui/cocoa/autofill/autofill_popup_view_cocoa.mm
index c21981d1a83148c414ad13483af997296d8d6fac..f45e014f0bd4641023ccd98f43feef2ca7dd6992 100644
--- a/chrome/browser/ui/cocoa/autofill/autofill_popup_view_cocoa.mm
+++ b/chrome/browser/ui/cocoa/autofill/autofill_popup_view_cocoa.mm
@@ -197,11 +197,8 @@ - (CGFloat)drawName:(NSString*)name
          rightAlign:(BOOL)rightAlign
              bounds:(NSRect)bounds
         textYOffset:(CGFloat)textYOffset {
-  // TODO(crbug.com/666189): Use
-  // AutofillPopupLayoutModel::GetValueFontColorForRow() instead and remove
-  // IsWarning() method.
-  NSColor* nameColor =
-      controller_->IsWarning(index) ? [self warningColor] : [self nameColor];
+  NSColor* nameColor = skia::SkColorToSRGBNSColor(
+      controller_->layout_model().GetValueFontColorForRow(index));
   NSDictionary* nameAttributes = [NSDictionary
       dictionaryWithObjectsAndKeys:controller_->layout_model()
                                        .GetValueFontListForRow(index)