Update {virtual,override,final} to follow C++11 style in net.

net/cert/cert_verify_proc_android.h

 // Copyright (c) 2012 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_CERT_CERT_VERIFY_PROC_ANDROID_H_
 #define NET_CERT_CERT_VERIFY_PROC_ANDROID_H_
 
 #include "net/cert/cert_verify_proc.h"
 
 namespace net {
 
 // Performs certificate verification on Android by calling the platform
 // TrustManager through JNI.
 class CertVerifyProcAndroid : public CertVerifyProc {
  public:
   CertVerifyProcAndroid();
 
-  virtual bool SupportsAdditionalTrustAnchors() const override;
+  bool SupportsAdditionalTrustAnchors() const override;
 
  protected:
-  virtual ~CertVerifyProcAndroid();
+  ~CertVerifyProcAndroid() override;
 
  private:
-  virtual int VerifyInternal(X509Certificate* cert,
-                             const std::string& hostname,
-                             int flags,
-                             CRLSet* crl_set,
-                             const CertificateList& additional_trust_anchors,
-                             CertVerifyResult* verify_result) override;
+  int VerifyInternal(X509Certificate* cert,
+                     const std::string& hostname,
+                     int flags,
+                     CRLSet* crl_set,
+                     const CertificateList& additional_trust_anchors,
+                     CertVerifyResult* verify_result) override;
 };
 
 }  // namespace net
 
 #endif  // NET_CERT_CERT_VERIFY_PROC_ANDROID_H_