`google-c-style.el` not indenting class properly

Hi there, I use emacs GNU Emacs 24.5.1 (x86_64-unknown-linux-gnu, GTK+ Version 2.24.30) in ubuntu 16.04 desktop.

I use the goole-c-style.el for c++ coding, but the public notation indent is not right according to
cppguide.html # Class Format #

```
class MyClass : public OtherClass {
public: // Note the 1 space indent!
MyClass(); // Regular 2 space indent.
}
};
```

My code snippet as below:

```
// simple derived class
class RatedPlayer : public TableTennisPlayer {
public: // **_NO 1 space indent here_**
aa();
};
```

and my init.el content as below:

```
(setq emacs-load-start-time (current-time))
(add-to-list 'load-path (expand-file-name "~/.emacs.d/lisp"))

(let ((file-name-handler-alist nil))
(require 'init-gui-frames)
(require 'google-c-style)

(add-hook 'c-mode-common-hook 'google-set-c-style)
(add-hook 'c-mode-common-hook 'google-make-newline-indent)
)
```

Any help ?
Thank you!