Move //components/ui/zoom to top-level under //components

components/zoom/zoom_observer.h

 // Copyright (c) 2012 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_UI_ZOOM_ZOOM_OBSERVER_H_
-#define COMPONENTS_UI_ZOOM_ZOOM_OBSERVER_H_
+#ifndef COMPONENTS_ZOOM_ZOOM_OBSERVER_H_
+#define COMPONENTS_ZOOM_ZOOM_OBSERVER_H_
 
-#include "components/ui/zoom/zoom_controller.h"
+#include "components/zoom/zoom_controller.h"
 
-namespace ui_zoom {
+namespace zoom {
 
 // Interface for objects that wish to be notified of changes in ZoomController.
 class ZoomObserver {
  public:
   // Notification that the zoom percentage has changed.
   virtual void OnZoomChanged(const ZoomController::ZoomChangedEventData& data) {
   }
 
  protected:
   virtual ~ZoomObserver() {}
 };
 
-}  // namespace ui_zoom
+}  // namespace zoom
 
-#endif  // COMPONENTS_UI_ZOOM_ZOOM_OBSERVER_H_
+#endif  // COMPONENTS_ZOOM_ZOOM_OBSERVER_H_