Add parsing for RFC 5280's PolicyMappings certificate extension.

net/cert/internal/parsed_certificate.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "net/cert/internal/parsed_certificate.h"
 
 #include "net/cert/internal/certificate_policies.h"
 #include "net/cert/internal/extended_key_usage.h"
 #include "net/cert/internal/name_constraints.h"
 #include "net/cert/internal/signature_algorithm.h"
@@ skipping 185 matching lines @@
     }
 
     // Policy constraints.
     if (result->GetExtension(PolicyConstraintsOid(), &extension)) {
       result->has_policy_constraints_ = true;
       if (!ParsePolicyConstraints(extension.value,
                                   &result->policy_constraints_)) {
         return nullptr;
       }
     }
+
+    // Policy mappings.
+    if (result->GetExtension(PolicyMappingsOid(), &extension)) {
+      result->has_policy_mappings_ = true;
+      if (!ParsePolicyMappings(extension.value, &result->policy_mappings_)) {
+        return nullptr;
+      }
+    }
+
+    // Inhibit Any Policy.
+    if (result->GetExtension(InhibitAnyPolicyOid(), &extension)) {
+      result->has_inhibit_any_policy_ = true;
+      if (!ParseInhibitAnyPolicy(extension.value,
+                                 &result->inhibit_any_policy_)) {
+        return nullptr;
+      }
+    }
   }
 
   return result;
 }
 
 }  // namespace net