Move RenderProcessObserver and RenderViewVisitor to content\public\renderer and put them in the c...

content/renderer/render_view_visitor.h

Index: content/renderer/render_view_visitor.h
===================================================================
--- content/renderer/render_view_visitor.h	(revision 103758)
+++ content/renderer/render_view_visitor.h	(working copy)
@@ -1,20 +0,0 @@
-// 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 CONTENT_RENDERER_RENDER_VIEW_VISITOR_H_
-#define CONTENT_RENDERER_RENDER_VIEW_VISITOR_H_
-#pragma once
-
-class RenderView;
-
-class RenderViewVisitor {
- public:
-  // Return true to continue visiting RenderViews or false to stop.
-  virtual bool Visit(RenderView* render_view) = 0;
-
- protected:
-  virtual ~RenderViewVisitor() {}
-};
-
-#endif  // CONTENT_RENDERER_RENDER_VIEW_VISITOR_H_