Add new enum values for AuthPolicyErrorType

BUG=chromium:684679

Change-Id: If9a0ef6666b41e4f214a6334bfc6e4c3f5d84a3d
Reviewed-on: https://chromium-review.googlesource.com/793811
Commit-Queue: Roman Sorokin <rsorokin@chromium.org>
Reviewed-by: Lutz Justen <ljusten@chromium.org>
Reviewed-by: Mark Pearson <mpearson@chromium.org>
Cr-Commit-Position: refs/heads/master@{#519945}

tools/metrics/histograms/enums.xml

@@ -1840,6 +1840,10 @@ uploading your change for review.  These are checked by presubmit scripts.
   <int value="25" label="Kerberos ticket expired while renewing credentials"/>
   <int value="26" label="klist exited with unspecified error"/>
   <int value="27" label="kinit failed because of bad machine name."/>
+  <int value="28" label="New password was rejected during password change."/>
+  <int value="29"
+      label="Could not store device policy since install attributes are not
+             locked yet; stored policy in cache instead."/>
 </enum>
 
 <enum name="AutocheckoutBubble">