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

components/sessions/core/tab_restore_service_client.h

 // Copyright 2015 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_CORE_TAB_RESTORE_SERVICE_CLIENT_H_
 #define COMPONENTS_SESSIONS_CORE_TAB_RESTORE_SERVICE_CLIENT_H_
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
-#include "components/sessions/session_id.h"
-#include "components/sessions/sessions_export.h"
+#include "components/sessions/core/session_id.h"
+#include "components/sessions/core/sessions_export.h"
 
 namespace base {
 class CancelableTaskTracker;
 class SequencedWorkerPool;
 }
 
 class GURL;
 
 namespace sessions {
 
@@ skipping 64 matching lines @@
                               base::CancelableTaskTracker* tracker) = 0;
 
   // Called when a tab is restored. |url| is the URL that the tab is currently
   // visiting.
   virtual void OnTabRestored(const GURL& url);
 };
 
 }  // namespace sessions
 
 #endif  // COMPONENTS_SESSIONS_CORE_TAB_RESTORE_SERVICE_CLIENT_H_