[Sync] Fix namespaces for the sync_sessions component.

chrome/browser/extensions/api/sessions/sessions_api.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 CHROME_BROWSER_EXTENSIONS_API_SESSIONS_SESSIONS_API_H__
 #define CHROME_BROWSER_EXTENSIONS_API_SESSIONS_SESSIONS_API_H__
 
 #include <string>
 
 #include "base/macros.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "chrome/common/extensions/api/sessions.h"
 #include "chrome/common/extensions/api/tabs.h"
 #include "chrome/common/extensions/api/windows.h"
 #include "components/sessions/core/tab_restore_service.h"
 #include "components/sessions/core/tab_restore_service_observer.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/browser/event_router.h"
 
 class Profile;
 
-namespace sync_driver {
+namespace sync_sessions {
 struct SyncedSession;
 }
 
 namespace extensions {
 
 class SessionId;
 
 class SessionsGetRecentlyClosedFunction : public ChromeSyncExtensionFunction {
  protected:
   ~SessionsGetRecentlyClosedFunction() override {}
@@ skipping 21 matching lines @@
                                 const sessions::SessionTab& tab,
                                 int tab_index,
                                 bool active);
   std::unique_ptr<api::windows::Window> CreateWindowModel(
       const sessions::SessionWindow& window,
       const std::string& session_tag);
   std::unique_ptr<api::sessions::Session> CreateSessionModel(
       const sessions::SessionWindow& window,
       const std::string& session_tag);
   api::sessions::Device CreateDeviceModel(
-      const sync_driver::SyncedSession* session);
+      const sync_sessions::SyncedSession* session);
 };
 
 class SessionsRestoreFunction : public ChromeSyncExtensionFunction {
  protected:
   ~SessionsRestoreFunction() override {}
   bool RunSync() override;
   DECLARE_EXTENSION_FUNCTION("sessions.restore", SESSIONS_RESTORE)
 
  private:
   void SetInvalidIdError(const std::string& invalid_id);
@@ skipping 57 matching lines @@
 
   // Created lazily upon OnListenerAdded.
   std::unique_ptr<SessionsEventRouter> sessions_event_router_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionsAPI);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SESSIONS_SESSIONS_API_H__