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

ash/wm/ash_native_cursor_manager.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_NATIVE_CURSOR_MANAGER_H_
+#define ASH_WM_ASH_NATIVE_CURSOR_MANAGER_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/native_cursor_manager.h"
+#include "ui/views/corewm/native_cursor_manager_delegate.h"
+
+namespace ash {
+
+namespace test {
+class CursorManagerTestApi;
+}
+
+class ImageCursors;
+
+// This does the ash-specific setting of cursor details like cursor
+// visibility. It communicates back with the CursorManager through the
+// NativeCursorManagerDelegate interface, which receives messages about what
+// changes were acted on.
+class ASH_EXPORT AshNativeCursorManager
+    : public views::corewm::NativeCursorManager {
+ public:
+  AshNativeCursorManager();
+  virtual ~AshNativeCursorManager();
+
+ private:
+  friend class test::CursorManagerTestApi;
+
+  // Overridden from views::corewm::NativeCursorManager:
+  virtual void SetDeviceScaleFactor(
+      float device_scale_factor,
+      views::corewm::NativeCursorManagerDelegate* delegate) OVERRIDE;
+  virtual void SetCursor(
+      gfx::NativeCursor cursor,
+      views::corewm::NativeCursorManagerDelegate* delegate) OVERRIDE;
+  virtual void SetVisibility(
+      bool visible,
+      views::corewm::NativeCursorManagerDelegate* delegate) OVERRIDE;
+  virtual void SetMouseEventsEnabled(
+      bool enabled,
+      views::corewm::NativeCursorManagerDelegate* delegate) OVERRIDE;
+
+  // The cursor location where the cursor was disabled.
+  gfx::Point disabled_cursor_location_;
+
+  scoped_ptr<ImageCursors> image_cursors_;
+
+  DISALLOW_COPY_AND_ASSIGN(AshNativeCursorManager);
+};
+
+}  // namespace ash
+
+#endif  // ASH_WM_ASH_NATIVE_CURSOR_MANAGER_H_