[Sync] Fix namespaces for the sync_sessions component.

components/sync_sessions/open_tabs_ui_delegate.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_SYNC_SESSIONS_OPEN_TABS_UI_DELEGATE_H_
 #define COMPONENTS_SYNC_SESSIONS_OPEN_TABS_UI_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/ref_counted_memory.h"
 #include "components/sessions/core/session_id.h"
 #include "components/sessions/core/session_types.h"
 #include "components/sync_sessions/synced_session.h"
 
-namespace sync_driver {
+namespace sync_sessions {
 
 class OpenTabsUIDelegate {
  public:
   // If a valid favicon for the page at |url| is found, fills |favicon_png| with
   // the png-encoded image and returns true. Else, returns false.
   virtual bool GetSyncedFaviconForPageURL(
       const std::string& pageurl,
       scoped_refptr<base::RefCountedMemory>* favicon_png) const = 0;
 
   // Builds a list of all foreign sessions, ordered from most recent to least
@@ skipping 29 matching lines @@
       std::vector<const sessions::SessionTab*>* tabs) = 0;
 
   // Sets |*local| to point to the sessions sync representation of the
   // local machine.
   virtual bool GetLocalSession(const SyncedSession** local) = 0;
 
  protected:
   virtual ~OpenTabsUIDelegate();
 };
 
-}  // namespace sync_driver
+}  // namespace sync_sessions
 
 #endif  // COMPONENTS_SYNC_SESSIONS_OPEN_TABS_UI_DELEGATE_H_