[Sync] Move //components/sync to the syncer namespace.

chrome/browser/extensions/api/signed_in_devices/signed_in_devices_manager.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_SIGNED_IN_DEVICES_SIGNED_IN_DEVICES_MANAGER_H__
 #define CHROME_BROWSER_EXTENSIONS_API_SIGNED_IN_DEVICES_SIGNED_IN_DEVICES_MANAGER_H__
 
+#include <memory>
 #include <string>
+#include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/scoped_observer.h"
 #include "components/sync/device_info/device_info_tracker.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_registry_observer.h"
 
 class Profile;
@@ skipping 12 matching lines @@
 struct EventListenerInfo;
 
 // An object of this class is created for each extension that has registered
 // to be notified for device info change. The objects listen for notification
 // from sync on device info change. On receiving the notification the
 // new list of devices is constructed and passed back to the extension.
 // The extension id is part of this object as it is needed to fill in the
 // public ids for devices(public ids for a device, is not the same for
 // all extensions).
 class SignedInDevicesChangeObserver
-    : public sync_driver::DeviceInfoTracker::Observer {
+    : public syncer::DeviceInfoTracker::Observer {
  public:
   SignedInDevicesChangeObserver(const std::string& extension_id,
                                 Profile* profile);
   virtual ~SignedInDevicesChangeObserver();
 
   void OnDeviceInfoChange() override;
 
   const std::string& extension_id() {
     return extension_id_;
   }
@@ skipping 45 matching lines @@
       extension_registry_observer_;
 
   FRIEND_TEST_ALL_PREFIXES(SignedInDevicesManager, UpdateListener);
 
   DISALLOW_COPY_AND_ASSIGN(SignedInDevicesManager);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SIGNED_IN_DEVICES_SIGNED_IN_DEVICES_MANAGER_H__