[Sync] Move sessions files from sync_driver to sync_sessions.

components/sync_sessions/tab_node_pool.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_SYNC_DRIVER_TAB_NODE_POOL_H_
-#define COMPONENTS_SYNC_DRIVER_TAB_NODE_POOL_H_
+#ifndef COMPONENTS_SYNC_SESSIONS_TAB_NODE_POOL_H_
+#define COMPONENTS_SYNC_SESSIONS_TAB_NODE_POOL_H_
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/basictypes.h"
 #include "components/sessions/core/session_id.h"
 #include "sync/api/sync_change_processor.h"
 
 namespace syncer {
@@ skipping 17 matching lines @@
 //                   restart. Nodes are only unassociated temporarily while the
 //                   model associator figures out which tabs belong to which
 //                   nodes. Eventually any remaining unassociated nodes are
 //                   freed.
 // 3. Free         : Sync node is unused.
 
 class TabNodePool {
  public:
   TabNodePool();
   ~TabNodePool();
-  enum InvalidTab {
-    kInvalidTabID = -1
-  };
+  enum InvalidTab { kInvalidTabID = -1 };
 
   // If free nodes > kFreeNodesHighWatermark, delete all free nodes until
   // free nodes <= kFreeNodesLowWatermark.
   static const size_t kFreeNodesLowWatermark;
 
   // Maximum limit of FreeNodes allowed on the client.
   static const size_t kFreeNodesHighWatermark;
 
   static const int kInvalidTabNodeID;
 
@@ skipping 97 matching lines @@
 
   // The machine tag associated with this tab pool. Used in the title of new
   // sync nodes.
   std::string machine_tag_;
 
   DISALLOW_COPY_AND_ASSIGN(TabNodePool);
 };
 
 }  // namespace browser_sync
 
-#endif  // COMPONENTS_SYNC_DRIVER_TAB_NODE_POOL_H_
+#endif  // COMPONENTS_SYNC_SESSIONS_TAB_NODE_POOL_H_