Standardize usage of virtual/override/final in net/

net/http/http_auth_handler_negotiate.h

Index: net/http/http_auth_handler_negotiate.h
diff --git a/net/http/http_auth_handler_negotiate.h b/net/http/http_auth_handler_negotiate.h
index 8ff924477e841ebe89e3c7a652cb803be3c5a6df..fc596fa6db1e49ea673ed7e7b95b12d106c11381 100644
--- a/net/http/http_auth_handler_negotiate.h
+++ b/net/http/http_auth_handler_negotiate.h
@@ -43,7 +43,7 @@ class NET_EXPORT_PRIVATE HttpAuthHandlerNegotiate : public HttpAuthHandler {
   class NET_EXPORT_PRIVATE Factory : public HttpAuthHandlerFactory {
    public:
     Factory();
-    virtual ~Factory();
+    ~Factory() override;
 
     // |disable_cname_lookup()| and |set_disable_cname_lookup()| get/set whether
     // the auth handlers generated by this factory should skip looking up the
@@ -69,14 +69,13 @@ class NET_EXPORT_PRIVATE HttpAuthHandlerNegotiate : public HttpAuthHandler {
       auth_library_.reset(auth_library);
     }
 
-    virtual int CreateAuthHandler(
-        HttpAuthChallengeTokenizer* challenge,
-        HttpAuth::Target target,
-        const GURL& origin,
-        CreateReason reason,
-        int digest_nonce_count,
-        const BoundNetLog& net_log,
-        scoped_ptr<HttpAuthHandler>* handler) override;
+    int CreateAuthHandler(HttpAuthChallengeTokenizer* challenge,
+                          HttpAuth::Target target,
+                          const GURL& origin,
+                          CreateReason reason,
+                          int digest_nonce_count,
+                          const BoundNetLog& net_log,
+                          scoped_ptr<HttpAuthHandler>* handler) override;
 
    private:
     bool disable_cname_lookup_;
@@ -99,26 +98,26 @@ class NET_EXPORT_PRIVATE HttpAuthHandlerNegotiate : public HttpAuthHandler {
                            bool disable_cname_lookup,
                            bool use_port);
 
-  virtual ~HttpAuthHandlerNegotiate();
+  ~HttpAuthHandlerNegotiate() override;
 
   // These are public for unit tests
   std::string CreateSPN(const AddressList& address_list, const GURL& orign);
   const std::string& spn() const { return spn_; }
 
   // HttpAuthHandler:
-  virtual HttpAuth::AuthorizationResult HandleAnotherChallenge(
+  HttpAuth::AuthorizationResult HandleAnotherChallenge(
       HttpAuthChallengeTokenizer* challenge) override;
-  virtual bool NeedsIdentity() override;
-  virtual bool AllowsDefaultCredentials() override;
-  virtual bool AllowsExplicitCredentials() override;
+  bool NeedsIdentity() override;
+  bool AllowsDefaultCredentials() override;
+  bool AllowsExplicitCredentials() override;
 
  protected:
-  virtual bool Init(HttpAuthChallengeTokenizer* challenge) override;
+  bool Init(HttpAuthChallengeTokenizer* challenge) override;
 
-  virtual int GenerateAuthTokenImpl(const AuthCredentials* credentials,
-                                    const HttpRequestInfo* request,
-                                    const CompletionCallback& callback,
-                                    std::string* auth_token) override;
+  int GenerateAuthTokenImpl(const AuthCredentials* credentials,
+                            const HttpRequestInfo* request,
+                            const CompletionCallback& callback,
+                            std::string* auth_token) override;
 
  private:
   enum State {