Move TouchTransformerController to ui/display/.

ash/touch/touch_transformer_controller.h

Index: ash/touch/touch_transformer_controller.h
diff --git a/ash/touch/touch_transformer_controller.h b/ash/touch/touch_transformer_controller.h
deleted file mode 100644
index 7abb8ce2b98d6211034a8868b46de7fea8cb82c9..0000000000000000000000000000000000000000
--- a/ash/touch/touch_transformer_controller.h
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright 2014 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_TOUCH_TOUCH_TRANSFORMER_CONTROLLER_H_
-#define ASH_TOUCH_TOUCH_TRANSFORMER_CONTROLLER_H_
-
-#include <stdint.h>
-
-#include "ash/ash_export.h"
-#include "ash/display/window_tree_host_manager.h"
-#include "base/gtest_prod_util.h"
-#include "base/macros.h"
-#include "ui/gfx/transform.h"
-
-namespace ui {
-struct TouchscreenDevice;
-}  // namespace ui
-
-namespace ash {
-
-// TouchTransformerController listens to display configuration change
-// and updates the touch transformation for touch displays.
-class ASH_EXPORT TouchTransformerController
-    : public WindowTreeHostManager::Observer {
- public:
-  TouchTransformerController();
-  ~TouchTransformerController() override;
-
-  // Updates the TouchTransformer for touch device and pushes the new
-  // TouchTransformer into device manager.
-  void UpdateTouchTransformer() const;
-
-  // WindowTreeHostManager::Observer:
-  void OnDisplaysInitialized() override;
-  void OnDisplayConfigurationChanged() override;
-
- private:
-  friend class TouchTransformerControllerTest;
-
-  // Returns a transform that will be used to change an event's location from
-  // the touchscreen's coordinate system into |display|'s coordinate system.
-  // The transform is also responsible for properly scaling the display if the
-  // display supports panel fitting.
-  //
-  // On X11 events are reported in framebuffer coordinate space, so the
-  // |framebuffer_size| is used for scaling.
-  // On Ozone events are reported in the touchscreen's resolution, so
-  // |touch_display| is used to determine the size and scale the event.
-  gfx::Transform GetTouchTransform(
-      const display::ManagedDisplayInfo& display,
-      const display::ManagedDisplayInfo& touch_display,
-      const ui::TouchscreenDevice& touchscreen,
-      const gfx::Size& framebuffer_size) const;
-
-  // Returns the scaling factor for the touch radius such that it scales the
-  // radius from |touch_device|'s coordinate system to the |touch_display|'s
-  // coordinate system.
-  double GetTouchResolutionScale(
-      const display::ManagedDisplayInfo& touch_display,
-      const ui::TouchscreenDevice& touch_device) const;
-
-  // For the provided |display| update the touch radius mapping.
-  void UpdateTouchRadius(const display::ManagedDisplayInfo& display) const;
-
-  // For a given |target_display| and |target_display_id| update the touch
-  // transformation based on the touchscreen associated with |touch_display|.
-  // |target_display_id| is the display id whose root window will receive the
-  // touch events.
-  // |touch_display| is the physical display that has the touchscreen
-  // from which the events arrive.
-  // |target_display| provides the dimensions to which the touch event will be
-  // transformed.
-  void UpdateTouchTransform(
-      int64_t target_display_id,
-      const display::ManagedDisplayInfo& touch_display,
-      const display::ManagedDisplayInfo& target_display) const;
-
-  DISALLOW_COPY_AND_ASSIGN(TouchTransformerController);
-};
-
-}  // namespace ash
-
-#endif  // ASH_TOUCH_TOUCH_TRANSFORMER_CONTROLLER_H_