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:
~RenderWidgetHostIterator()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_
26