Minor clean-up tasks that were TODO(snej)

net/base/ev_root_ca_metadata.h

Index: net/base/ev_root_ca_metadata.h
diff --git a/net/base/ev_root_ca_metadata.h b/net/base/ev_root_ca_metadata.h
index f006878f7f6fa0855202395701e24caf573cb159..b1b278165e2ff8c7f839ff0443dff352cb535b70 100644
--- a/net/base/ev_root_ca_metadata.h
+++ b/net/base/ev_root_ca_metadata.h
@@ -35,7 +35,7 @@ class EVRootCAMetadata {
 
   // If the root CA cert has an EV policy OID, returns true and stores the
   // policy OID in *policy_oid.  Otherwise, returns false.
-  bool GetPolicyOID(const X509Certificate::Fingerprint& fingerprint,
+  bool GetPolicyOID(const SHA1Fingerprint& fingerprint,
                     PolicyOID* policy_oid) const;
 
   const PolicyOID* GetPolicyOIDs() const { return &policy_oids_[0]; }
@@ -47,8 +47,8 @@ class EVRootCAMetadata {
 
   friend struct DefaultSingletonTraits<EVRootCAMetadata>;
 
-  typedef std::map<X509Certificate::Fingerprint, PolicyOID,
-                   X509Certificate::FingerprintLessThan> PolicyOidMap;
+  typedef std::map<SHA1Fingerprint, PolicyOID,
+                   SHA1FingerprintLessThan> PolicyOidMap;
 
   // Maps an EV root CA cert's SHA-1 fingerprint to its EV policy OID.
   PolicyOidMap ev_policy_;