Change credential provider button label to "Add person".

Bug: 907614
Change-Id: Ic8383f2e9d04a202296ff3e25fb64e7093d7818f
Reviewed-on: https://chromium-review.googlesource.com/c/1347582Reviewed-by: Owen Min <zmin@chromium.org>
Commit-Queue: Roger Tawa <rogerta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610273}

chrome/credential_provider/gaiacp/gaia_resources.grd

@@ -155,7 +155,7 @@
         Sign in using your Google Account.
       </message>
       <message name="IDS_AUTH_FID_PROVIDER_LABEL" desc="">
-        Google Account
+        Add person
       </message>
       <message name="IDS_REAUTH_FID_DESCRIPTION" desc="">
         Sign in using your updated Google Account password.

chrome/credential_provider/gaiacp/gaia_resources_grd/IDS_AUTH_FID_PROVIDER_LABEL.png.sha1

-1e5368f132d18a05b6dcc097e7cc7468e071dd3c
\ No newline at end of file
+19a49972aaaec7dd9126cff9eb619384ca97a9bb
\ No newline at end of file