Added device naming information to chrome://policy

Added Asset Id, Location of the device and directory API ID
to the device policy box.

BUG=464184

Review URL: https://codereview.chromium.org/1052943002

Cr-Original-Commit-Position: refs/heads/master@{#325225}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 36d002df861fc6da74af21a1c2e3974f33b1a552

ios/grit_whitelist.txt

@@ -862,8 +862,11 @@ IDS_POLICY_HIDE_EXPANDED_VALUE
 IDS_POLICY_INVALID_BOOKMARK
 IDS_POLICY_INVALID_PROXY_MODE_ERROR
 IDS_POLICY_INVALID_SEARCH_URL_ERROR
+IDS_POLICY_LABEL_ASSET_ID
 IDS_POLICY_LABEL_CLIENT_ID
+IDS_POLICY_LABEL_DIRECTORY_API_ID
 IDS_POLICY_LABEL_DOMAIN
+IDS_POLICY_LABEL_LOCATION
 IDS_POLICY_LABEL_REFRESH_INTERVAL
 IDS_POLICY_LABEL_STATUS
 IDS_POLICY_LABEL_TIME_SINCE_LAST_REFRESH
@@ -873,6 +876,7 @@ IDS_POLICY_LEVEL_MANDATORY
 IDS_POLICY_LEVEL_RECOMMENDED
 IDS_POLICY_LIST_ENTRY_ERROR
 IDS_POLICY_NEVER_FETCHED
+IDS_POLICY_NOT_SPECIFIED
 IDS_POLICY_NOT_SPECIFIED_ERROR
 IDS_POLICY_NO_POLICIES_SET
 IDS_POLICY_OK