Abandon user sign in when policy is retrieved before session started

tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 2aa3c49632f13f4bfb80bb1864afa9ddedbe5ca3..0651c7279e03e617a7261b16745db3d3d85cbe1a 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -15322,6 +15322,17 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram base="true" name="Enterprise.RetrievePolicyResponse"
+    enum="EnterpriseRetrievePolicyResponseType">
+<!-- Name completed by histogram_suffixes name="EnterpriseRetrievePolicyResponse" -->
+
+  <owner>emaxx@chromium.org</owner>
+  <owner>igorcov@chromium.org</owner>
+  <summary>
+    On Chrome OS, the response obtained to retrieve policy request.
+  </summary>
+</histogram>
+
 <histogram name="Enterprise.SystemLogPIILeak" enum="SystemLogPIIType">
   <obsolete>
     Deprecated and removed from code as of 01/2016.
@@ -92855,6 +92866,18 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   <int value="18" label="Store Failed">Caching a policy to disk failed.</int>
 </enum>
 
+<enum name="EnterpriseRetrievePolicyResponseType" type="int">
+  <summary>
+    Status codes produced by SessionManagerClient for policy retrieval requests.
+    Corresponds to RetrievePolicyResponseType in
+    chromeos/dbus/session_manager_client.h.
+  </summary>
+  <int value="0" label="Other type of error on retrieve policy request"/>
+  <int value="1" label="Success"/>
+  <int value="2" label="Retrieve request issued before session started"/>
+  <int value="3" label="Failed to retrieve policy data in session manager"/>
+</enum>
+
 <enum name="EnterpriseUploadJobSuccess" type="int">
   <summary>
     Number of UploadJob retries as defined in
@@ -121208,6 +121231,16 @@ from previous Chrome versions.
   <affected-histogram name="SiteEngagementService.EngagementScoreBucket"/>
 </histogram_suffixes>
 
+<histogram_suffixes name="EnterpriseRetrievePolicyResponse" separator=".">
+  <owner>emaxx@chromium.org</owner>
+  <owner>igorcov@chromium.org</owner>
+  <suffix name="Device" label="Device policy fetch response."/>
+  <suffix name="DeviceLocalAccount"
+      label="DeviceLocalAccount policy fetch response."/>
+  <suffix name="User" label="User policy fetch response."/>
+  <affected-histogram name="Enterprise.RetrievePolicyResponse"/>
+</histogram_suffixes>
+
 <histogram_suffixes name="EventLatencyOS" separator=".">
   <suffix name="MOUSE_WHEEL"/>
   <suffix name="TOUCH_MOVED"/>