Add OVERRIDE to net/.

net/base/cert_verifier.h

 // Copyright (c) 2011 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.
 
 #ifndef NET_BASE_CERT_VERIFIER_H_
 #define NET_BASE_CERT_VERIFIER_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 165 matching lines @@
     int flags;
   };
 
   void HandleResult(X509Certificate* cert,
                     const std::string& hostname,
                     int flags,
                     int error,
                     const CertVerifyResult& verify_result);
 
   // CertDatabase::Observer methods:
-  virtual void OnCertTrustChanged(const X509Certificate* cert);
+  virtual void OnCertTrustChanged(const X509Certificate* cert) OVERRIDE;
 
   // cache_ maps from a request to a cached result. The cached result may
   // have expired and the size of |cache_| must be <= max_cache_entries_.
   std::map<RequestParams, CachedCertVerifyResult> cache_;
 
   // inflight_ maps from a request to an active verification which is taking
   // place.
   std::map<RequestParams, CertVerifierJob*> inflight_;
 
   scoped_ptr<TimeService> time_service_;
@@ skipping 42 matching lines @@
   // The current request (if any).
   CertVerifier::RequestHandle cur_request_;
   CompletionCallback cur_request_callback_;
 
   DISALLOW_COPY_AND_ASSIGN(SingleRequestCertVerifier);
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_CERT_VERIFIER_H_