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

components/sessions/content/content_serialized_navigation_driver.h

 // Copyright 2014 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_CONTENT_CONTENT_SERIALIZED_NAVIGATION_DRIVER_H_
 #define COMPONENTS_SESSIONS_CONTENT_CONTENT_SERIALIZED_NAVIGATION_DRIVER_H_
 
 #include "components/sessions/core/serialized_navigation_driver.h"
 
-#include "components/sessions/sessions_export.h"
+#include "components/sessions/core/sessions_export.h"
 
 namespace base {
 template <typename T> struct DefaultSingletonTraits;
 }
 
 namespace sessions {
 
 // Provides an implementation of SerializedNavigationDriver that is backed by
 // content classes.
 class SESSIONS_EXPORT_PRIVATE ContentSerializedNavigationDriver
@@ skipping 18 matching lines @@
       const std::string& page_state) const override;
 
  private:
   ContentSerializedNavigationDriver();
   friend struct base::DefaultSingletonTraits<ContentSerializedNavigationDriver>;
 };
 
 }  // namespace sessions
 
 #endif  // COMPONENTS_SESSIONS_CONTENT_CONTENT_SERIALIZED_NAVIGATION_DRIVER_H_