Standardize usage of virtual/override/final in google_apis/

google_apis/gaia/account_tracker.h

Index: google_apis/gaia/account_tracker.h
diff --git a/google_apis/gaia/account_tracker.h b/google_apis/gaia/account_tracker.h
index 2d32b7d1a46aa85e0c67b8604163808eecdd7d88..41ebd2e60dca7ab60fb501e373497b745df63251 100644
--- a/google_apis/gaia/account_tracker.h
+++ b/google_apis/gaia/account_tracker.h
@@ -45,7 +45,7 @@ class AccountTracker : public OAuth2TokenService::Observer,
  public:
   AccountTracker(IdentityProvider* identity_provider,
                  net::URLRequestContextGetter* request_context_getter);
-  virtual ~AccountTracker();
+  ~AccountTracker() override;
 
   class Observer {
    public:
@@ -67,16 +67,16 @@ class AccountTracker : public OAuth2TokenService::Observer,
   AccountIds FindAccountIdsByGaiaId(const std::string& gaia_id);
 
   // OAuth2TokenService::Observer implementation.
-  virtual void OnRefreshTokenAvailable(const std::string& account_key) override;
-  virtual void OnRefreshTokenRevoked(const std::string& account_key) override;
+  void OnRefreshTokenAvailable(const std::string& account_key) override;
+  void OnRefreshTokenRevoked(const std::string& account_key) override;
 
   void OnUserInfoFetchSuccess(AccountIdFetcher* fetcher,
                               const std::string& gaia_id);
   void OnUserInfoFetchFailure(AccountIdFetcher* fetcher);
 
   // IdentityProvider::Observer implementation.
-  virtual void OnActiveAccountLogin() override;
-  virtual void OnActiveAccountLogout() override;
+  void OnActiveAccountLogin() override;
+  void OnActiveAccountLogout() override;
 
   // Sets the state of an account. Does not fire notifications.
   void SetAccountStateForTest(AccountIds ids, bool is_signed_in);
@@ -120,23 +120,23 @@ class AccountIdFetcher : public OAuth2TokenService::Consumer,
                    net::URLRequestContextGetter* request_context_getter,
                    AccountTracker* tracker,
                    const std::string& account_key);
-  virtual ~AccountIdFetcher();
+  ~AccountIdFetcher() override;
 
   const std::string& account_key() { return account_key_; }
 
   void Start();
 
   // OAuth2TokenService::Consumer implementation.
-  virtual void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
-                                 const std::string& access_token,
-                                 const base::Time& expiration_time) override;
-  virtual void OnGetTokenFailure(const OAuth2TokenService::Request* request,
-                                 const GoogleServiceAuthError& error) override;
+  void OnGetTokenSuccess(const OAuth2TokenService::Request* request,
+                         const std::string& access_token,
+                         const base::Time& expiration_time) override;
+  void OnGetTokenFailure(const OAuth2TokenService::Request* request,
+                         const GoogleServiceAuthError& error) override;
 
   // gaia::GaiaOAuthClient::Delegate implementation.
-  virtual void OnGetUserIdResponse(const std::string& gaia_id) override;
-  virtual void OnOAuthError() override;
-  virtual void OnNetworkError(int response_code) override;
+  void OnGetUserIdResponse(const std::string& gaia_id) override;
+  void OnOAuthError() override;
+  void OnNetworkError(int response_code) override;
 
  private:
   OAuth2TokenService* token_service_;