Rename "managed (mode|user)" to "supervised user" (part 8)

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 0411800cd7f51d5e39dbbd162d214f0f89018f63..4e99a31505c082c9dc7553d93ed09393ec2778b1 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -13429,7 +13429,7 @@ Some features may be unavailable.  Please check that the profile exists and you
         Oops! The new supervised user couldn't be created. Please make sure you're signed in properly and try again.
       </message>
       <message name="IDS_PROFILES_CREATE_EXISTING_SUPERVISED_USER_ERROR" desc="Message shown when the user enters the name of a supervised user that can be imported.">
-      Looks like you're already managing a user by that name.<ph name="LINE_BREAK">&lt;br/&gt;</ph>Did you want to <ph name="BEGIN_LINK">&lt;button id="supervised-user-import" class="link-button"&gt;</ph>import <ph name="PROFILE_NAME">$1<ex>John</ex></ph> to this device<ph name="END_LINK">&lt;/button&gt;</ph>?
+      Looks like you're already managing a user by that name.<ph name="LINE_BREAK">&lt;br/&gt;</ph>Did you want to <ph name="BEGIN_LINK">&lt;button id="supervised-user-import-existing" class="link-button"&gt;</ph>import <ph name="PROFILE_NAME">$1<ex>John</ex></ph> to this device<ph name="END_LINK">&lt;/button&gt;</ph>?
     </message>
       <message name="IDS_PROFILES_CREATE_SUPERVISED_SIGNED_IN_LABEL" desc="Label for the 'Supervised user' checkbox in the create-profile dialog when the current user is signed in. This will be followed by a 'Learn more' link.">
         This is a supervised user managed by <ph name="CUSTODIAN_EMAIL">$1<ex>user@gmail.com</ex></ph>.