Standardize usage of virtual/override/final in content/browser/

content/browser/net/sqlite_persistent_cookie_store_unittest.cc

Index: content/browser/net/sqlite_persistent_cookie_store_unittest.cc
diff --git a/content/browser/net/sqlite_persistent_cookie_store_unittest.cc b/content/browser/net/sqlite_persistent_cookie_store_unittest.cc
index 395b29fefdebcfd308d418389b608b629f058369..510de0d6383c3ccdd5bdbbbb15fe2f98536e8b82 100644
--- a/content/browser/net/sqlite_persistent_cookie_store_unittest.cc
+++ b/content/browser/net/sqlite_persistent_cookie_store_unittest.cc
@@ -40,10 +40,10 @@ const base::FilePath::CharType kCookieFilename[] = FILE_PATH_LITERAL("Cookies");
 class CookieCryptor : public content::CookieCryptoDelegate {
  public:
   CookieCryptor();
-  virtual bool EncryptString(const std::string& plaintext,
-                             std::string* ciphertext) override;
-  virtual bool DecryptString(const std::string& ciphertext,
-                             std::string* plaintext) override;
+  bool EncryptString(const std::string& plaintext,
+                     std::string* ciphertext) override;
+  bool DecryptString(const std::string& ciphertext,
+                     std::string* plaintext) override;
 
  private:
   scoped_ptr<crypto::SymmetricKey> key_;