Enable -Winconsistent-missing-override flag.

webrtc/base/fakesslidentity.h

 /*
  *  Copyright 2012 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 19 matching lines @@
   explicit FakeSSLCertificate(const std::vector<std::string>& certs)
       : data_(certs.front()),
         digest_algorithm_(DIGEST_SHA_1),
         expiration_time_(-1) {
     std::vector<std::string>::const_iterator it;
     // Skip certs[0].
     for (it = certs.begin() + 1; it != certs.end(); ++it) {
       certs_.push_back(FakeSSLCertificate(*it));
     }
   }
-  virtual FakeSSLCertificate* GetReference() const {
+  FakeSSLCertificate* GetReference() const override {
     return new FakeSSLCertificate(*this);
   }
-  virtual std::string ToPEMString() const {
+  std::string ToPEMString() const override {
     return data_;
   }
-  virtual void ToDER(Buffer* der_buffer) const {
+  void ToDER(Buffer* der_buffer) const override {
     std::string der_string;
     VERIFY(SSLIdentity::PemToDer(kPemTypeCertificate, data_, &der_string));
     der_buffer->SetData(der_string.c_str(), der_string.size());
   }
   int64_t CertificateExpirationTime() const override {
     return expiration_time_;
   }
   void SetCertificateExpirationTime(int64_t expiration_time) {
     expiration_time_ = expiration_time;
   }
   void set_digest_algorithm(const std::string& algorithm) {
     digest_algorithm_ = algorithm;
   }
-  virtual bool GetSignatureDigestAlgorithm(std::string* algorithm) const {
+  bool GetSignatureDigestAlgorithm(std::string* algorithm) const override {
     *algorithm = digest_algorithm_;
     return true;
   }
-  virtual bool ComputeDigest(const std::string& algorithm,
-                             unsigned char* digest,
-                             size_t size,
-                             size_t* length) const {
+  bool ComputeDigest(const std::string& algorithm,
+                     unsigned char* digest,
+                     size_t size,
+                     size_t* length) const override {
     *length = rtc::ComputeDigest(algorithm, data_.c_str(), data_.size(),
                                        digest, size);
     return (*length != 0);
   }
-  virtual std::unique_ptr<SSLCertChain> GetChain() const {
+  std::unique_ptr<SSLCertChain> GetChain() const override {
     if (certs_.empty())
       return nullptr;
     std::vector<SSLCertificate*> new_certs(certs_.size());
     std::transform(certs_.begin(), certs_.end(), new_certs.begin(), DupCert);
     std::unique_ptr<SSLCertChain> chain(new SSLCertChain(new_certs));
     std::for_each(new_certs.begin(), new_certs.end(), DeleteCert);
     return chain;
   }
 
  private:
@@ skipping 28 matching lines @@
     RTC_NOTREACHED();  // Not implemented.
     return false;
   }
  private:
   FakeSSLCertificate cert_;
 };
 
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_FAKESSLIDENTITY_H_