components/favicon/core/favicon_driver_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 COMPONENTS_FAVICON_CORE_FAVICON_DRIVER_OBSERVER_H_
   6 #define COMPONENTS_FAVICON_CORE_FAVICON_DRIVER_OBSERVER_H_
   7
   8 #include "base/macros.h"
   9
  10 namespace gfx {
  11 class Image;
  12 }
  13
  14 namespace favicon {
  15
  16 // An observer implemented by classes which are interested in event from
  17 // FaviconDriver.
  18 class FaviconDriverObserver {
  19  public:
  20   FaviconDriverObserver() {}
  21   virtual ~FaviconDriverObserver() {}
  22
  23   // Called when favicon |image| is retrieved from either web site or cached
  24   // storage.
  25   virtual void OnFaviconAvailable(const gfx::Image& image) = 0;
  26
  27  private:
  28   DISALLOW_COPY_AND_ASSIGN(FaviconDriverObserver);
  29 };
  30
  31 }  // namespace favicon
  32
  33 #endif  // COMPONENTS_FAVICON_CORE_FAVICON_DRIVER_OBSERVER_H_