diff -r 000000000000 -r 4f2f89ce4247 WebCore/loader/CachedResourceClientWalker.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/loader/CachedResourceClientWalker.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,49 @@
+/*
+    Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
+    Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
+    Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+
+    This class provides all functionality needed for loading images, style sheets and html
+    pages from the web. It has a memory cache for these objects.
+*/
+
+#ifndef CachedResourceClientWalker_h
+#define CachedResourceClientWalker_h
+
+#include <wtf/HashCountedSet.h>
+#include <wtf/Vector.h>
+
+namespace WebCore {
+
+    class CachedResourceClient;
+
+    // Call this "walker" instead of iterator so people won't expect Qt or STL-style iterator interface.
+    // Just keep calling next() on this. It's safe from deletions of items.
+    class CachedResourceClientWalker {
+    public:
+        CachedResourceClientWalker(const HashCountedSet<CachedResourceClient*>&);
+        CachedResourceClient* next();
+    private:
+        const HashCountedSet<CachedResourceClient*>& m_clientSet;
+        Vector<CachedResourceClient*> m_clientVector;
+        size_t m_index;
+    };
+
+}
+
+#endif