Update {virtual,override} to follow C++11 style in chrome.

chrome/browser/password_manager/password_store_win.cc

Index: chrome/browser/password_manager/password_store_win.cc
diff --git a/chrome/browser/password_manager/password_store_win.cc b/chrome/browser/password_manager/password_store_win.cc
index 08d6876b31fcdd5374a8ededf8da5e39d08c9169..368bec7c7ca7a70c4c523c132f37fc0c3534ac46 100644
--- a/chrome/browser/password_manager/password_store_win.cc
+++ b/chrome/browser/password_manager/password_store_win.cc
@@ -30,7 +30,7 @@ class PasswordStoreWin::DBHandler : public WebDataServiceConsumer {
             PasswordStoreWin* password_store)
       : web_data_service_(web_data_service), password_store_(password_store) {}
 
-  ~DBHandler();
+  ~DBHandler() override;
 
   // Requests the IE7 login for |form|. This is async. |result_callback| will be
   // run when complete.
@@ -60,7 +60,7 @@ class PasswordStoreWin::DBHandler : public WebDataServiceConsumer {
       const PasswordForm& form);
 
   // WebDataServiceConsumer implementation.
-  virtual void OnWebDataServiceRequestDone(
+  void OnWebDataServiceRequestDone(
       PasswordWebDataService::Handle handle,
       const WDTypedResult* result) override;