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

components/ui/zoom/page_zoom.h

-// Copyright 2015 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_PAGE_ZOOM_H_
-#define COMPONENTS_UI_ZOOM_PAGE_ZOOM_H_
-
-#include <vector>
-
-#include "base/macros.h"
-#include "content/public/common/page_zoom.h"
-
-namespace content {
-class WebContents;
-}
-
-namespace ui_zoom {
-
-// This class provides a means of zooming pages according to a predetermined
-// set of zoom levels/factors. In future, the static methods in this class
-// can be made non-static, with PresetZoomX() being virtual, to allow clients
-// to create custom sets of zoom levels.
-class PageZoom {
- public:
-  // Return a sorted vector of zoom factors. The vector will consist of preset
-  // values along with a custom value (if the custom value is not already
-  // represented.)
-  static std::vector<double> PresetZoomFactors(double custom_factor);
-
-  // Return a sorted vector of zoom levels. The vector will consist of preset
-  // values along with a custom value (if the custom value is not already
-  // represented.)
-  static std::vector<double> PresetZoomLevels(double custom_level);
-
-  // Adjusts the zoom level of |web_contents|.
-  static void Zoom(content::WebContents* web_contents, content::PageZoom zoom);
-
- private:
-  // We don't expect (currently) to create instances of this class.
-  PageZoom() {}
-  DISALLOW_COPY_AND_ASSIGN(PageZoom);
-};
-
-}  // namespace ui_zoom
-
-#endif  // COMPONENTS_UI_ZOOM_PAGE_ZOOM_H_