Standardize usage of virtual/override/final in google_apis/

google_apis/gaia/fake_identity_provider.h

Index: google_apis/gaia/fake_identity_provider.h
diff --git a/google_apis/gaia/fake_identity_provider.h b/google_apis/gaia/fake_identity_provider.h
index 1ba0f50365b527e13a0eb722aa2cb32820c501d5..21408085f70b2f27e6c5fb4049446ff8f382dd87 100644
--- a/google_apis/gaia/fake_identity_provider.h
+++ b/google_apis/gaia/fake_identity_provider.h
@@ -17,16 +17,16 @@ class OAuth2TokenService;
 class FakeIdentityProvider : public IdentityProvider {
  public:
   explicit FakeIdentityProvider(OAuth2TokenService* token_service);
-  virtual ~FakeIdentityProvider();
+  ~FakeIdentityProvider() override;
 
   void LogIn(const std::string& account_id);
   void LogOut();
 
   // IdentityProvider:
-  virtual std::string GetActiveUsername() override;
-  virtual std::string GetActiveAccountId() override;
-  virtual OAuth2TokenService* GetTokenService() override;
-  virtual bool RequestLogin() override;
+  std::string GetActiveUsername() override;
+  std::string GetActiveAccountId() override;
+  OAuth2TokenService* GetTokenService() override;
+  bool RequestLogin() override;
 
  private:
   std::string account_id_;