Disable UI flags for non-desktop OSes

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 e51c77e79dfb238216904bb3cfacebf5885d480e..2785cf4e8e7cd31e79486e43e41421c46fe1954e 100644
--- a/components/signin/core/common/profile_management_switches.cc
+++ b/components/signin/core/common/profile_management_switches.cc
@@ -144,7 +144,12 @@ bool IsGoogleProfileInfo() {
 }
 
 bool IsNewAvatarMenu() {
+  // NewAvatarMenu is only available on desktop.
+#if defined(OS_ANDROID) || defined(OS_IOS) || defined(OS_CHROMEOS)
+  return false;
+#else
   return GetProcessState() >= STATE_NEW_AVATAR_MENU;
+#endif
 }
 
 bool IsNewProfileManagement() {