Update app menu button MD colors for the notification case.

chrome/browser/ui/views/profiles/new_avatar_button.cc

Index: chrome/browser/ui/views/profiles/new_avatar_button.cc
diff --git a/chrome/browser/ui/views/profiles/new_avatar_button.cc b/chrome/browser/ui/views/profiles/new_avatar_button.cc
index 16fef6bb95f3a17b95d2104708c725f4e753891a..5faaa7dd6a3ba842de1e2c82d87f190f2c7bd6a4 100644
--- a/chrome/browser/ui/views/profiles/new_avatar_button.cc
+++ b/chrome/browser/ui/views/profiles/new_avatar_button.cc
@@ -209,9 +209,9 @@ void NewAvatarButton::Update() {
   if (use_generic_button) {
     SetImage(views::Button::STATE_NORMAL, generic_avatar_);
   } else if (has_auth_error_) {
-    SetImage(
-        views::Button::STATE_NORMAL,
-        gfx::CreateVectorIcon(gfx::VectorIconId::WARNING, 13, gfx::kAmber));
+    SetImage(views::Button::STATE_NORMAL,
+             gfx::CreateVectorIcon(gfx::VectorIconId::WARNING, 13,
+                                   gfx::kGoogleYellow700));
   } else {
     SetImage(views::Button::STATE_NORMAL, gfx::ImageSkia());
   }