MockWebContentsObserver 1875 chrome/browser/ui/browser_browsertest.cc   explicit MockWebContentsObserver(WebContents* web_contents)
MockWebContentsObserver 1895 chrome/browser/ui/browser_browsertest.cc   DISALLOW_COPY_AND_ASSIGN(MockWebContentsObserver);
MockWebContentsObserver 1904 chrome/browser/ui/browser_browsertest.cc   MockWebContentsObserver mock_observer(web_contents);