Cleanup of SSLHostStateDelegate and related code

content/public/browser/ssl_host_state_delegate.h

Index: content/public/browser/ssl_host_state_delegate.h
diff --git a/content/public/browser/ssl_host_state_delegate.h b/content/public/browser/ssl_host_state_delegate.h
index bcacd7fdef1aa08b47496abf9344090809df2dd5..9f564a194b1a42b8cb7d4f32bfb16c06cfc8514c 100644
--- a/content/public/browser/ssl_host_state_delegate.h
+++ b/content/public/browser/ssl_host_state_delegate.h
@@ -27,13 +27,13 @@ class SSLHostStateDelegate {
   // Records that |cert| is not permitted to be used for |host| in the future,
   // for a specified |error| type.
   virtual void DenyCert(const std::string& host,
-                        net::X509Certificate* cert,
+                        const net::X509Certificate& cert,
                         net::CertStatus error) = 0;
 
   // Records that |cert| is permitted to be used for |host| in the future, for
   // a specified |error| type.
   virtual void AllowCert(const std::string&,
-                         net::X509Certificate* cert,
+                         const net::X509Certificate& cert,
                          net::CertStatus error) = 0;
 
   // Clear all allow/deny preferences.
@@ -44,7 +44,7 @@ class SSLHostStateDelegate {
   // immediately prior to this query, otherwise false.
   virtual net::CertPolicy::Judgment QueryPolicy(
       const std::string& host,
-      net::X509Certificate* cert,
+      const net::X509Certificate& cert,
       net::CertStatus error,
       bool* expired_previous_decision) = 0;