Puts the new Material Design User Manager behind a flag

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index e405aad85deed6e6a7d02f2bf61c51535bc10dd3..d2741bb0556646b1aafb2003e656ee2c4081c174 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -12991,6 +12991,12 @@ Please check your email at <ph name="ACCOUNT_EMAIL">$2<ex>jane.doe@gmail.com</ex
       <message name="IDS_FLAGS_ENABLE_PASSWORD_SEPARATED_SIGNIN_FLOW_DESCRIPTION" desc="Description for the flag to enable the new gaia password-separated sign in flow.">
         When enabled, signing in to the browser will use a new gaia password-separated sign in flow.
       </message>
+      <message name="IDS_FLAGS_ENABLE_MATERIAL_DESIGN_USER_MANAGER_NAME" desc="Title for the flag to enable the new material design user manager.">
+        Enable Material Design User Manager
+      </message>
+      <message name="IDS_FLAGS_ENABLE_MATERIAL_DESIGN_USER_MANAGER_DESCRIPTION" desc="Description for the flag to enable the new material design user manager.">
+        When enabled, the Switch person button in the avatar menu launches the new Material Design user manager.
+      </message>
 
       <message name="IDS_FLAGS_GOOGLE_PROFILE_INFO_NAME" desc="Title for the flag to enable the google profile information">
         Google profile name and icon