Update SSL error handling code to account for Subject CN deprecation

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 0a268919a1b35d0c32f6acc65993bdfbc6755aad..11dba5f743cb58b9cc08b8071869930747e8c96a 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -111544,44 +111544,24 @@ from previous Chrome versions.
     reason to believe that the system clock was behind.  Methods of detecting
     clock inaccuracy have changed over time.
   </int>
-  <int value="2"
-      label="WWW_SUBDOMAIN_MATCH: Difference between the URL and the DNS is
-             www">
-    This cause is recorded if the ssl error is CERT_COMMON_NAME_INVALID and the
-    hostname differs from one of the DNS names in the certificate (CN or SANs)
-    only by the presence or absence of the single-label prefix &quot;www&quot;.
-    This case is not recored if the host name is not a known TLD.
-  </int>
-  <int value="3" label="SUBDOMAIN_MATCH: The URL is a subdomain of the DNS">
-    This cause is recorded if the ssl error is CERT_COMMON_NAME_INVALID and the
-    difference between the URL and the DNS name is not &quot;www&quot;. This
-    case is not recorded if the host name is not a known TLD.
+  <int value="2" label="WWW_SUBDOMAIN_MATCH: (Deprecated)">
+    (Deprecated in favor of WWW_SUBDOMAIN_MATCH2)
   </int>
-  <int value="4"
-      label="SUBDOMAIN_INVERSE_MATCH: The DNS is a subdomain of the URL">
-    This cause is recorded if the ssl error is CERT_COMMON_NAME_INVALID and the
-    difference between the DNS name and the URL is not &quot;www&quot;. This
-    case is not recorded if the host name is not a known TLD.
+  <int value="3" label="SUBDOMAIN_MATCH: (Deprecated)">
+    (Deprecated in favor of SUBDOMAIN_MATCH2)
   </int>
-  <int value="5"
-      label="SUBDOMAIN_OUTSIDE_WILDCARD: The URL is outside the scope of the
-             wildcard certificate">
-    This cause is recorded only if the ssl error is CERT_COMMON_NAME_INVALID, we
-    have received a wildcard certificate and the scope of a wildcard certificate
-    is too narrow for the hostname. This case is not recorded if the host name
-    is not a known TLD.
+  <int value="4" label="SUBDOMAIN_INVERSE_MATCH: (Deprecated)">
+    (Deprecated in favor of SUBDOMAIN_INVERSE_MATCH2)
+  </int>
+  <int value="5" label="SUBDOMAIN_OUTSIDE_WILDCARD: (Deprecated)">
+    (Deprecated in favor of SUBDOMAIN_OUTSIDE_WILDCARD2)
   </int>
   <int value="6"
       label="HOST_NAME_NOT_KNOWN_TLD: The host name is not a known TLD">
     This cause is recorded only for CERT_COMMON_NAME_INVALID errors.
   </int>
-  <int value="7"
-      label="LIKELY_MULTI_TENANT_HOSTING: The certificate is a shared
-             certificate">
-    This cause is recorded only for CERT_COMMON_NAME_INVALID errors. It is
-    possible that this error overlaps with others but it is not likely because
-    of the heuristics which decide as to what constitutes a shared certificate.
-    In cases of overlap, we emit to only one bucket.
+  <int value="7" label="LIKELY_MULTI_TENANT_HOSTING: (Deprecated)">
+    (Deprecated in favor of LIKELY_MULTI_TENANT_HOSTING2)
   </int>
   <int value="8" label="LOCALHOST: The user is trying to connect to local host">
     This cause is recorded only for CERT_AUTHORITY_INVALID errors.
@@ -111601,12 +111581,56 @@ from previous Chrome versions.
   <int value="12" label="EXPIRED_RECENTLY: Cert expired within last 28 days.">
 
   </int>
-  <int value="13"
-      label="LIKELY_SAME_DOMAIN: Cert likely belongs to the same domain">
+  <int value="13" label="LIKELY_SAME_DOMAIN: (Deprecated)">
+    (Deprecated in favor of LIKELY_SAME_DOMAIN2)
+  </int>
+  <int value="14" label="NO_SUBJECT_ALT_NAME: Cert lacks SubjectAltName">
+    This case is recorded if the SSL error is CERT_COMMON_NAME_INVALID error and
+    the certificate does not specify any DNS names in a SubjectAltName
+    extension. (Chrome 58 deprecated matching hostnames to the SubjectCN Field.)
+  </int>
+  <int value="15"
+      label="WWW_SUBDOMAIN_MATCH2: Difference between the URL and the DNS is
+             www">
+    This cause is recorded if the SSL error is CERT_COMMON_NAME_INVALID and the
+    hostname differs from one of the DNS names in the certificate (SANs) only by
+    the presence or absence of the single-label prefix &quot;www&quot;. This
+    case is not recorded if the host name is not a known TLD.
+  </int>
+  <int value="16" label="SUBDOMAIN_MATCH2: The URL is a subdomain of the DNS">
+    This cause is recorded if the SSL error is CERT_COMMON_NAME_INVALID, the URL
+    hostname is a subdomain of a DNS name in the certificate, and the difference
+    between the URL and the DNS name is not &quot;www&quot;. This case is not
+    recorded if the host name is not a known TLD.
+  </int>
+  <int value="17"
+      label="SUBDOMAIN_INVERSE_MATCH2: The DNS is a subdomain of the URL">
+    This cause is recorded if the SSL error is CERT_COMMON_NAME_INVALID, a DNS
+    name in the certificate is a subdomain of the URL hostname, and the
+    difference between the DNS name and the URL is not &quot;www&quot;. This
+    case is not recorded if the host name is not a known TLD.
+  </int>
+  <int value="18"
+      label="SUBDOMAIN_OUTSIDE_WILDCARD2: The URL is outside the scope of the
+             wildcard certificate">
+    This cause is recorded only if the SSL error is CERT_COMMON_NAME_INVALID, we
+    have received a wildcard certificate and the scope of a wildcard certificate
+    is too narrow for the hostname. This case is not recorded if the host name
+    is not a known TLD.
+  </int>
+  <int value="19"
+      label="LIKELY_MULTI_TENANT_HOSTING2: The certificate is a shared
+             certificate">
+    This cause is recorded only for CERT_COMMON_NAME_INVALID errors where the
+    certificate contains numerous unrelated DNS names. This case is not recorded
+    if the host name is not a known TLD.
+  </int>
+  <int value="20"
+      label="LIKELY_SAME_DOMAIN2: Cert likely belongs to the same domain">
     This case is recorded if the SSL error is CERT_COMMON_NAME_INVALID error and
     the hostname in request URL has the same domain (effective TLD + 1 label) as
-    the common name or at least one of the subject alternative names in
-    certificate. This case is not recorded if the host name is not a known tld.
+    a SubjectAltName in the certificate. This case is not recorded if the host
+    name is not a known TLD.
   </int>
 </enum>
 
@@ -111616,11 +111640,12 @@ from previous Chrome versions.
   <int value="2" label="SHOW_CAPTIVE_PORTAL_INTERSTITIAL_OVERRIDABLE"/>
   <int value="3" label="SHOW_SSL_INTERSTITIAL_NONOVERRIDABLE"/>
   <int value="4" label="SHOW_SSL_INTERSTITIAL_OVERRIDABLE"/>
-  <int value="5" label="WWW_MISMATCH_FOUND"/>
+  <int value="5" label="WWW_MISMATCH_FOUND (Deprecated)"/>
   <int value="6" label="WWW_MISMATCH_URL_AVAILABLE"/>
   <int value="7" label="WWW_MISMATCH_URL_NOT_AVAILABLE"/>
   <int value="8" label="SHOW_BAD_CLOCK"/>
   <int value="9" label="CAPTIVE_PORTAL_CERT_FOUND"/>
+  <int value="10" label="WWW_MISMATCH_FOUND_IN_SAN"/>
 </enum>
 
 <enum name="SSLErrorTypes" type="int">