Eliminate WebView::GetDelegate and replace RenderViewSet with a linked list o...

chrome/renderer/render_view_visitor.h

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_RENDERER_RENDER_VIEW_VISITOR_H_
+#define CHROME_RENDERER_RENDER_VIEW_VISITOR_H_
+
+class RenderViewVisitor {
+ public:
+  // Return true to continue visiting RenderViews or false to stop.
+  virtual bool Visit(RenderView* render_view) = 0;
+
+ protected:
+  ~RenderViewVisitor() {}
+};
+
+#endif  // CHROME_RENDERER_RENDER_VIEW_VISITOR_H_