[Nearby] Fix plural string for unreachable contacts.

Adjusts the plural form of the string for the "unreachable contacts"
message to make the rest of the sentence use plural forms where
appropriate.

Screenshot:
  https://screenshot.googleplex.com/7NWXZtQ7t2CTaWK.png

Fixed: b:174502944
Change-Id: Id8fc82cbed9e22cae6a1893bde6be534f12689bd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2568430Reviewed-by: James Vecore <vecore@google.com>
Commit-Queue: Michael Hansen <hansenmichael@google.com>
Cr-Commit-Position: refs/heads/master@{#832531}

chrome/app/nearby_share_strings.grdp

@@ -28,7 +28,7 @@
   <message name="IDS_NEARBY_CONTACT_VISIBILITY_NUM_UNREACHABLE" desc="Informational message indicating that there are contacts that are not connectable for sharing with the Nearby Share feature.">
     {COUNT, plural,
       =1 {# contact is not available. To use Nearby Share with them, add the email address associated with their Google Account to your contacts.}
-      other {# contacts are not available. To use Nearby Share with them, add the email address associated with their Google Account to your contacts.}
+      other {# contacts are not available. To use Nearby Share with them, add the email addresses associated with their Google Accounts to your contacts.}
     }
   </message>
   <message name="IDS_NEARBY_CONTACT_VISIBILITY_OTHERS" desc="Describes when nearby devices are visible to this user when using the Nearby Share feature.">

chrome/app/nearby_share_strings_grdp/IDS_NEARBY_CONTACT_VISIBILITY_NUM_UNREACHABLE.png.sha1

-ed8290079c6a8322f04de43996154eb3fdd0068b
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+461eb5d6518b9bce650ebab42f3acdfbd939dcc3
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