Certificate Transparency: Code for unpacking EV cert hashes whitelist

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 bff5da0e325dbb4ac324563d48c8ad4799740da1..7788d081373c8af1b37881f27c1a45749fd2bd6f 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -14089,7 +14089,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.CertificateTransparency.MainFrameValidSCTCount">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>eranm@chromium.org</owner>
   <summary>
     Number of valid Signed Certificate Timestamps (SCTs) present for the
     main-frame resource. Emitted every time a main-frame resource is fetched.
@@ -14097,7 +14097,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.CertificateTransparency.SCTOrigin" enum="SCTOrigin">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>eranm@chromium.org</owner>
   <summary>
     The origin breakdown of Signed Certificate Timestamps (SCTs). Emitted once
     for every SCT when first validated, which means 0 or more times during every
@@ -14106,7 +14106,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.CertificateTransparency.SCTsPerConnection">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>eranm@chromium.org</owner>
   <summary>
     The number of Signed Certificate Timestamps (SCTs) that were available for
     each SSL connection, including SCTs embedded in the certificate. This metric
@@ -14116,7 +14116,7 @@ Therefore, the affected-histogram name has to have at least one dot in it.
 </histogram>
 
 <histogram name="Net.CertificateTransparency.SCTStatus" enum="SCTVerifyStatus">
-  <owner>Please list the metric's owners. Add more owner tags as needed.</owner>
+  <owner>eranm@chromium.org</owner>
   <summary>
     Breakdown of Signed Certificate Timestamps (SCTs) validation status. Emitted
     once for every SCT when first validated, which means 0 or more times during
@@ -17260,6 +17260,15 @@ Therefore, the affected-histogram name has to have at least one dot in it.
   </summary>
 </histogram>
 
+<histogram name="Net.SSL_EVCertificateInWhitelist" enum="Boolean">
+  <owner>eranm@chromium.org</owner>
+  <owner>rsleevi@chromium.org</owner>
+  <summary>
+    Whether an EV certificate is present in the Certificate Transparency
+    whitelist
+  </summary>
+</histogram>
+
 <histogram name="Net.SSLCertBlacklisted">
   <owner>agl@chromium.org</owner>
   <summary>