MD Settings People: Display "On - custom settings" for custom data types

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 512b20c22d6a2da3237c22337c8fc4bcd3052ea4..c5967d2819a2db8109d2709a77e5d7b167881d8f 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -11468,9 +11468,12 @@ Tell us what happened exactly before you got the profile error message:
       <message name="IDS_SYNC_ACCOUNT_INFO" desc="The message that appears in the options dialog indicating that the user is signed in with the given email address.">
         Signed in as <ph name="USER_EMAIL_ADDRESS">$1<ex>foo@gmail.com</ex></ph>.
       </message>
-      <message name="IDS_SYNC_ACCOUNT_SYNCING" desc="The message that appears in the settings page indicating that account is syncing.">
+      <message name="IDS_SYNC_ACCOUNT_SYNCING" desc="The message that appears in the settings page indicating that account is syncing all data types.">
         On - sync everything
       </message>
+      <message name="IDS_SYNC_ACCOUNT_SYNCING_CUSTOM_DATA_TYPES" desc="The message that appears in the settings page indicating that account is syncing with a custom set of data types.">
+        On - custom settings
+      </message>
 
       <!-- Sync/sign-in error messages -->
       <message name="IDS_SIGNIN_ERROR_BUBBLE_VIEW_TITLE" desc="Title in the sign-in error bubble view/notification.">