Fix size and position of the virtual keyboard after a screen rotation.

ash/wm/virtual_keyboard_container_layout_manager.h

+// 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_WM_VIRTUAL_KEYBOARD_CONTAINER_LAYOUT_MANAGER_H_
+#define ASH_WM_VIRTUAL_KEYBOARD_CONTAINER_LAYOUT_MANAGER_H_
+
+#include "ash/snap_to_pixel_layout_manager.h"
+#include "base/macros.h"
+
+namespace aura {
+class Window;
+}
+
+namespace ash {
+
+class VirtualKeyboardContainerLayoutManager : public SnapToPixelLayoutManager {
+ public:
+  explicit VirtualKeyboardContainerLayoutManager(aura::Window* container);
+  virtual ~VirtualKeyboardContainerLayoutManager();
+
+  // Overridden from SnapToPixelLayoutManager:
+  virtual void OnWindowResized() OVERRIDE;
+
+ private:
+  aura::Window* parent_container_;
+
+  DISALLOW_COPY_AND_ASSIGN(VirtualKeyboardContainerLayoutManager);
+};
+
+}  // namespace ash
+
+#endif  // ASH_WM_VIRTUAL_KEYBOARD_CONTAINER_LAYOUT_MANAGER_H_