Move all core files in //components/sessions into core/ subdir

components/sessions/core/serialized_navigation_entry.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 COMPONENTS_SESSIONS_SERIALIZED_NAVIGATION_ENTRY_H_
-#define COMPONENTS_SESSIONS_SERIALIZED_NAVIGATION_ENTRY_H_
+#ifndef COMPONENTS_SESSIONS_CORE_SERIALIZED_NAVIGATION_ENTRY_H_
+#define COMPONENTS_SESSIONS_CORE_SERIALIZED_NAVIGATION_ENTRY_H_
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
-#include "components/sessions/sessions_export.h"
+#include "components/sessions/core/sessions_export.h"
 #include "ui/base/page_transition_types.h"
 #include "url/gurl.h"
 
 namespace base {
 class Pickle;
 class PickleIterator;
 }
 
 namespace sync_pb {
 class TabNavigation;
@@ skipping 109 matching lines @@
   bool is_restored_;    // Not persisted.
   std::vector<GURL> redirect_chain_;  // Not persisted.
 
   // Additional information.
   BlockedState blocked_state_;
   std::set<std::string> content_pack_categories_;
 };
 
 }  // namespace sessions
 
-#endif  // COMPONENTS_SESSIONS_SERIALIZED_NAVIGATION_ENTRY_H_
+#endif  // COMPONENTS_SESSIONS_CORE_SERIALIZED_NAVIGATION_ENTRY_H_