[Mac] Redesign the avatar bubble UI

components/signin/core/common/profile_management_switches.cc

Index: components/signin/core/common/profile_management_switches.cc
diff --git a/components/signin/core/common/profile_management_switches.cc b/components/signin/core/common/profile_management_switches.cc
index f15e93985ad89340f7efd86d57ab9abe28a25ab5..6a5f6fd65bd24efe69f2d6fa103f1a2ccb7c8bd3 100644
--- a/components/signin/core/common/profile_management_switches.cc
+++ b/components/signin/core/common/profile_management_switches.cc
@@ -45,11 +45,6 @@ bool IsEnableWebBasedSignin() {
   return CheckProfileManagementFlag(switches::kEnableWebBasedSignin, false);
 }
 
-bool IsFastUserSwitching() {
-  return CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kFastUserSwitching);
-}
-
 bool IsGoogleProfileInfo() {
   return CheckProfileManagementFlag(switches::kGoogleProfileInfo, true);
 }
@@ -70,4 +65,12 @@ bool IsNewProfileManagementPreviewEnabled() {
   return is_new_avatar_menu && IsNewProfileManagement();
 }
 
+bool IsFastUserSwitching() {
+  bool is_just_new_menu =
+      CommandLine::ForCurrentProcess()->HasSwitch(switches::kNewAvatarMenu) &&
+      !IsNewProfileManagement();
+  return CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kFastUserSwitching) || is_just_new_menu;
+}
+
 }  // namespace switches