content/public/browser/render_widget_host_iterator.h

   1 // Copyright (c) 2013 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 CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_ITERATOR_H_
   6 #define CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_ITERATOR_H_
   7
   8 namespace content {
   9
  10 class RenderWidgetHost;
  11
  12 // RenderWidgetHostIterator is used to safely iterate over a list of
  13 // RenderWidgetHosts.
  14 class RenderWidgetHostIterator {
  15  public:
  16   virtual ~RenderWidgetHostIterator() {}
  17
  18   // Returns the next RenderWidgetHost in the list. Returns nullptr if none is
  19   // available.
  20   virtual RenderWidgetHost* GetNextHost() = 0;
  21 };
  22
  23 }  // namespace content
  24
  25 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_WIDGET_HOST_ITERATOR_H_