ChromeOS: Implement CaptivePortalAuthenticationIgnoresProxy policy.

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 088c2638a80dbb162f5d65dc9501b078ce8f427e..2b06606724e8e4a389b8ce7aa8e76023c4a67768 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -44980,6 +44980,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   <int value="282" label="Force Google SafeSearch"/>
   <int value="283" label="Force YouTube Safety Mode"/>
   <int value="284" label="Allow device shutdown"/>
+  <int value="285" label="Captive portal authentication ignores proxy"/>
 </enum>
 
 <enum name="EnterprisePolicyInvalidations" type="int">
@@ -49582,6 +49583,7 @@ To add a new entry, add it with any value and run test to compute valid value.
   <int value="-1546903171" label="enable-touch-drag-drop"/>
   <int value="-1510839574" label="disable-sync-synced-notifications"/>
   <int value="-1497338981" label="disable-accelerated-overflow-scroll"/>
+  <int value="-1490298774" label="enable-captive-portal-bypass-proxy-option"/>
   <int value="-1482685863" label="enable-request-tablet-site"/>
   <int value="-1460462432" label="disable-media-source"/>
   <int value="-1433087548" label="enable-app-install-alerts"/>