[Sync] Fix namespaces for the sync_sessions component.

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_SESSIONS_TAB_NODE_POOL_H_
 #define COMPONENTS_SYNC_SESSIONS_TAB_NODE_POOL_H_
 
 #include <stddef.h>
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "base/macros.h"
 #include "components/sessions/core/session_id.h"
 #include "components/sync/api/sync_change_processor.h"
 
 namespace syncer {
 class SyncChangeProcessor;
 }
 
-namespace browser_sync {
+namespace sync_sessions {
 
 // A pool for managing free/used tab sync nodes for the *local* session.
 // Performs lazy creation of sync nodes when necessary.
 // Note: We make use of the following "id's"
 // - a tab_id: created by session service, unique to this client
 // - a tab_node_id: the id for a particular sync tab node. This is used
 //   to generate the sync tab node tag through:
 //       tab_tag = StringPrintf("%s_%ui", local_session_tag, tab_node_id);
 //
 // A sync node can be in one of the three states:
@@ skipping 119 matching lines @@
   // be created with max_used_tab_node_id_ + 1.
   int max_used_tab_node_id_;
 
   // 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
+}  // namespace sync_sessions
 
 #endif  // COMPONENTS_SYNC_SESSIONS_TAB_NODE_POOL_H_