Revert "Revert 148383 - Move the keyboard overlay view to ash."

ash/keyboard_overlay/keyboard_overlay_view.h

Index: ash/keyboard_overlay/keyboard_overlay_view.h
diff --git a/ash/keyboard_overlay/keyboard_overlay_view.h b/ash/keyboard_overlay/keyboard_overlay_view.h
new file mode 100644
index 0000000000000000000000000000000000000000..a0b44e06eae98f60757f1d33f00071183fa0ccdf
--- /dev/null
+++ b/ash/keyboard_overlay/keyboard_overlay_view.h
@@ -0,0 +1,42 @@
+// 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_KEYBOARD_OVERLAY_KEYBOARD_OVERLAY_VIEW_H_
+#define ASH_KEYBOARD_OVERLAY_KEYBOARD_OVERLAY_VIEW_H_
+
+#include "ash/ash_export.h"
+#include "base/compiler_specific.h"
+#include "ui/views/controls/webview/web_dialog_view.h"
+
+class GURL;
+
+namespace content {
+class BrowserContext;
+}
+
+namespace ui {
+class WebDialogDelegate;
+}
+
+// A customized dialog view for the keyboard overlay.
+class ASH_EXPORT KeyboardOverlayView : public views::WebDialogView {
+ public:
+  KeyboardOverlayView(content::BrowserContext* context,
+                      ui::WebDialogDelegate* delegate,
+                      WebContentsHandler* handler);
+  virtual ~KeyboardOverlayView();
+
+  // Shows the keyboard overlay.
+  static void ShowDialog(content::BrowserContext* context,
+                         WebContentsHandler* handler,
+                         const GURL& url);
+
+ private:
+  // Overridden from views::WidgetDelegate:
+  virtual void WindowClosing() OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(KeyboardOverlayView);
+};
+
+#endif  // ASH_KEYBOARD_OVERLAY_KEYBOARD_OVERLAY_VIEW_H_