chrome/browser/favicon/favicon_tab_helper_observer.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_FAVICON_FAVICON_TAB_HELPER_OBSERVER_H_
   6 #define CHROME_BROWSER_FAVICON_FAVICON_TAB_HELPER_OBSERVER_H_
   7
   8 namespace gfx {
   9 class Image;
  10 }
  11
  12 // An observer implemented by classes which are interested in envent in
  13 // FaviconTabHelper.
  14 class FaviconTabHelperObserver {
  15  public:
  16   // Called when favicon |image| is retrieved from either web site or history
  17   // backend.
  18   virtual void OnFaviconAvailable(const gfx::Image& image) = 0;
  19
  20  protected:
  21   virtual ~FaviconTabHelperObserver() {}
  22 };
  23
  24 #endif  // CHROME_BROWSER_FAVICON_FAVICON_TAB_HELPER_OBSERVER_H_