Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/wallpaper/wallpaper_controller.h

Index: ash/wallpaper/wallpaper_controller.h
diff --git a/ash/wallpaper/wallpaper_controller.h b/ash/wallpaper/wallpaper_controller.h
deleted file mode 100644
index aaa3010f25129f563c8c46f7b4838da187a7b7e1..0000000000000000000000000000000000000000
--- a/ash/wallpaper/wallpaper_controller.h
+++ /dev/null
@@ -1,189 +0,0 @@
-// 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 ASH_WALLPAPER_WALLPAPER_CONTROLLER_H_
-#define ASH_WALLPAPER_WALLPAPER_CONTROLLER_H_
-
-#include <memory>
-
-#include "ash/ash_export.h"
-#include "ash/public/interfaces/wallpaper.mojom.h"
-#include "ash/shell_observer.h"
-#include "ash/wm_display_observer.h"
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "base/observer_list.h"
-#include "base/timer/timer.h"
-#include "components/wallpaper/wallpaper_color_calculator_observer.h"
-#include "components/wallpaper/wallpaper_layout.h"
-#include "components/wallpaper/wallpaper_resizer_observer.h"
-#include "mojo/public/cpp/bindings/binding_set.h"
-#include "ui/gfx/color_analysis.h"
-#include "ui/gfx/image/image_skia.h"
-
-namespace base {
-class TaskRunner;
-}
-
-namespace wallpaper {
-class WallpaperColorCalculator;
-class WallpaperResizer;
-}
-
-namespace ash {
-
-class WallpaperControllerObserver;
-
-// Controls the desktop background wallpaper.
-class ASH_EXPORT WallpaperController
-    : public NON_EXPORTED_BASE(mojom::WallpaperController),
-      public WmDisplayObserver,
-      public ShellObserver,
-      public wallpaper::WallpaperResizerObserver,
-      public wallpaper::WallpaperColorCalculatorObserver {
- public:
-  enum WallpaperMode { WALLPAPER_NONE, WALLPAPER_IMAGE };
-
-  explicit WallpaperController(
-      const scoped_refptr<base::TaskRunner>& task_runner);
-  ~WallpaperController() override;
-
-  // Binds the mojom::WallpaperController interface request to this object.
-  void BindRequest(mojom::WallpaperControllerRequest request);
-
-  // Add/Remove observers.
-  void AddObserver(WallpaperControllerObserver* observer);
-  void RemoveObserver(WallpaperControllerObserver* observer);
-
-  SkColor prominent_color() const { return prominent_color_; }
-
-  // Provides current image on the wallpaper, or empty gfx::ImageSkia if there
-  // is no image, e.g. wallpaper is none.
-  gfx::ImageSkia GetWallpaper() const;
-
-  wallpaper::WallpaperLayout GetWallpaperLayout() const;
-
-  // Sets the wallpaper and alerts observers of changes.
-  void SetWallpaperImage(const gfx::ImageSkia& image,
-                         wallpaper::WallpaperLayout layout);
-
-  // Creates an empty wallpaper. Some tests require a wallpaper widget is ready
-  // when running. However, the wallpaper widgets are now created
-  // asynchronously. If loading a real wallpaper, there are cases that these
-  // tests crash because the required widget is not ready. This function
-  // synchronously creates an empty widget for those tests to prevent
-  // crashes. An example test is SystemGestureEventFilterTest.ThreeFingerSwipe.
-  void CreateEmptyWallpaper();
-
-  // Move all wallpaper widgets to the locked container.
-  // Returns true if the wallpaper moved.
-  bool MoveToLockedContainer();
-
-  // Move all wallpaper widgets to unlocked container.
-  // Returns true if the wallpaper moved.
-  bool MoveToUnlockedContainer();
-
-  // WmDisplayObserver:
-  void OnDisplayConfigurationChanged() override;
-
-  // ShellObserver:
-  void OnRootWindowAdded(WmWindow* root_window) override;
-
-  // Returns the maximum size of all displays combined in native
-  // resolutions.  Note that this isn't the bounds of the display who
-  // has maximum resolutions. Instead, this returns the size of the
-  // maximum width of all displays, and the maximum height of all displays.
-  static gfx::Size GetMaxDisplaySizeInNative();
-
-  // Returns true if the specified wallpaper is already stored
-  // in |current_wallpaper_|.
-  // If |compare_layouts| is false, layout is ignored.
-  bool WallpaperIsAlreadyLoaded(const gfx::ImageSkia& image,
-                                bool compare_layouts,
-                                wallpaper::WallpaperLayout layout) const;
-
-  void set_wallpaper_reload_delay_for_test(int value) {
-    wallpaper_reload_delay_ = value;
-  }
-
-  // Opens the set wallpaper page in the browser.
-  void OpenSetWallpaperPage();
-
-  // mojom::WallpaperController overrides:
-  void SetWallpaperPicker(mojom::WallpaperPickerPtr picker) override;
-  void SetWallpaper(const SkBitmap& wallpaper,
-                    wallpaper::WallpaperLayout layout) override;
-
-  // WallpaperResizerObserver:
-  void OnWallpaperResized() override;
-
-  // WallpaperColorCalculatorObserver:
-  void OnColorCalculationComplete() override;
-
- private:
-  // Returns true if the shelf should be colored based on the wallpaper's
-  // prominent color. |luma| and |saturation| are output parameters.
-  static bool GetProminentColorProfile(
-      color_utils::LumaRange* luma,
-      color_utils::SaturationRange* saturation);
-
-  // Creates a WallpaperWidgetController for |root_window|.
-  void InstallDesktopController(WmWindow* root_window);
-
-  // Creates a WallpaperWidgetController for all root windows.
-  void InstallDesktopControllerForAllWindows();
-
-  // Moves the wallpaper to the specified container across all root windows.
-  // Returns true if a wallpaper moved.
-  bool ReparentWallpaper(int container);
-
-  // Returns the wallpaper container id for unlocked and locked states.
-  int GetWallpaperContainerId(bool locked);
-
-  // Reload the wallpaper. |clear_cache| specifies whether to clear the
-  // wallpaper cahce or not.
-  void UpdateWallpaper(bool clear_cache);
-
-  // Sets |prominent_color_| and notifies the observers if there is a change.
-  void SetProminentColor(SkColor color);
-
-  // If enabled, will initiates an asynchronous task to extract colors from the
-  // wallpaper. If an existing calculation is in progress it is destroyed.
-  void CalculateWallpaperColors();
-
-  bool locked_;
-
-  WallpaperMode wallpaper_mode_;
-
-  // Wallpaper picker interface in chrome browser, used to open the picker.
-  mojom::WallpaperPickerPtr wallpaper_picker_;
-
-  // Bindings for the WallpaperController interface.
-  mojo::BindingSet<mojom::WallpaperController> bindings_;
-
-  base::ObserverList<WallpaperControllerObserver> observers_;
-
-  std::unique_ptr<wallpaper::WallpaperResizer> current_wallpaper_;
-
-  // Asynchronous task to extract colors from the wallpaper.
-  std::unique_ptr<wallpaper::WallpaperColorCalculator> color_calculator_;
-
-  // The prominent color extracted from the current wallpaper.
-  // SK_ColorTRANSPARENT is used by default or if extracting colors fails.
-  SkColor prominent_color_;
-
-  gfx::Size current_max_display_size_;
-
-  base::OneShotTimer timer_;
-
-  int wallpaper_reload_delay_;
-
-  scoped_refptr<base::TaskRunner> task_runner_;
-
-  DISALLOW_COPY_AND_ASSIGN(WallpaperController);
-};
-
-}  // namespace ash
-
-#endif  // ASH_WALLPAPER_WALLPAPER_CONTROLLER_H_