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

content/browser/frame_host/navigation_entry_impl.h

 // Copyright (c) 2012 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_NAVIGATION_ENTRY_IMPL_H_
-#define CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_ENTRY_IMPL_H_
+#ifndef CONTENT_BROWSER_FRAME_HOST_NAVIGATION_ENTRY_IMPL_H_
+#define CONTENT_BROWSER_FRAME_HOST_NAVIGATION_ENTRY_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/public/browser/favicon_status.h"
 #include "content/public/browser/global_request_id.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/common/page_state.h"
 #include "content/public/common/ssl_status.h"
 
@@ skipping 289 matching lines @@
   // Used to store extra data to support browser features. This member is not
   // persisted, unless specific data is taken out/put back in at save/restore
   // time (see TabNavigation for an example of this).
   std::map<std::string, string16> extra_data_;
 
   // Copy and assignment is explicitly allowed for this class.
 };
 
 }  // namespace content
 
-#endif  // CONTENT_BROWSER_WEB_CONTENTS_NAVIGATION_ENTRY_IMPL_H_
+#endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATION_ENTRY_IMPL_H_