Rework ash::CursorManager into a corewm object, to share code with desktop.

ash/wm/ash_cursor_platform_delegate.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 ASH_WM_ASH_CURSOR_PLATFORM_DELEGATE_H_
+#define ASH_WM_ASH_CURSOR_PLATFORM_DELEGATE_H_
+
+#include "ash/ash_export.h"
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/memory/scoped_ptr.h"
+#include "ui/gfx/native_widget_types.h"
+#include "ui/gfx/point.h"
+#include "ui/views/corewm/cursor_manager_delegate.h"
+#include "ui/views/corewm/cursor_platform_delegate.h"
+
+namespace ash {
+
+namespace test {
+class CursorManagerTestApi;
+}
+
+class ImageCursors;
+
+// This class controls the visibility and the type of the cursor.
+// The cursor type can be locked so that the type stays the same
+// until it's unlocked.
+class ASH_EXPORT AshCursorPlatformDelegate
+    : public views::corewm::CursorPlatformDelegate {
+ public:
+  AshCursorPlatformDelegate();
+  virtual ~AshCursorPlatformDelegate();
+
+ private:
+  friend class test::CursorManagerTestApi;
+
+  // Overridden from views::corewm::CursorPlatformDelegate:
+  virtual void SetDeviceScaleFactor(
+      float device_scale_factor,
+      views::corewm::CursorManagerDelegate* delegate) OVERRIDE;
+  virtual void SetCursor(
+      gfx::NativeCursor cursor,
+      views::corewm::CursorManagerDelegate* delegate) OVERRIDE;
+  virtual void SetVisibility(
+      bool visible,
+      views::corewm::CursorManagerDelegate* delegate) OVERRIDE;
+  virtual void SetMouseEventsEnabled(
+      bool enabled,
+      views::corewm::CursorManagerDelegate* delegate) OVERRIDE;
+
+  // The cursor location where the cursor was disabled.
+  gfx::Point disabled_cursor_location_;
+
+  scoped_ptr<ImageCursors> image_cursors_;
+
+  DISALLOW_COPY_AND_ASSIGN(AshCursorPlatformDelegate);
+};
+
+}  // namespace ash
+
+#endif  //  ASH_WM_ASH_CURSOR_PLATFORM_DELEGATE_H_