Move navigation and frame tree classes to a new frame_host/ directory.

content/browser/frame_host/frame_tree_node.h

 // Copyright 2013 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_BROWSER_WEB_CONTENTS_FRAME_TREE_NODE_H_
-#define CONTENT_BROWSER_WEB_CONTENTS_FRAME_TREE_NODE_H_
+#ifndef CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_
+#define CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "content/common/content_export.h"
 #include "url/gurl.h"
 
 namespace content {
@@ skipping 89 matching lines @@
   // process impact of out-of-process iframes.
   // TODO(creis): Remove this when we can store subframe URLs in the
   // NavigationController.
   GURL current_url_;
 
   DISALLOW_COPY_AND_ASSIGN(FrameTreeNode);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_BROWSER_WEB_CONTENTS_FRAME_TREE_NODE_H_
+#endif  // CONTENT_BROWSER_FRAME_HOST_FRAME_TREE_NODE_H_