Change infobar creation to use a public static Create() method on the infobar delegate classes.

chrome/browser/omnibox_search_hint.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_OMNIBOX_SEARCH_HINT_H_
 #define CHROME_BROWSER_OMNIBOX_SEARCH_HINT_H_
 
-#include <map>
-#include <string>
-
 #include "base/compiler_specific.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_user_data.h"
 
 class Profile;
 
 namespace content {
 class WebContents;
 }
@@ skipping 22 matching lines @@
   void DisableHint();
 
   // Returns true if the profile and current environment make the showing of the
   // hint infobar possible.
   static bool IsEnabled(Profile* profile);
 
  private:
   explicit OmniboxSearchHint(content::WebContents* web_contents);
   friend class content::WebContentsUserData<OmniboxSearchHint>;
 
-  void ShowInfoBar();
-
   content::NotificationRegistrar notification_registrar_;
 
   // The contents we are associated with.
   content::WebContents* web_contents_;
 
-  // A map containing the URLs of the search engine for which we want to
-  // trigger the hint.
-  std::map<std::string, int> search_engine_urls_;
-
   DISALLOW_COPY_AND_ASSIGN(OmniboxSearchHint);
 };
 
 #endif  // CHROME_BROWSER_OMNIBOX_SEARCH_HINT_H_