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diff --git a/chromium/ash/keyboard_overlay/keyboard_overlay_delegate.h b/chromium/ash/keyboard_overlay/keyboard_overlay_delegate.h
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index 00000000000..caf8f2a9cc4
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+++ b/chromium/ash/keyboard_overlay/keyboard_overlay_delegate.h
@@ -0,0 +1,66 @@
+// 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_DELEGATE_H_
+#define ASH_KEYBOARD_OVERLAY_KEYBOARD_OVERLAY_DELEGATE_H_
+
+#include "ash/ash_export.h"
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "base/gtest_prod_util.h"
+#include "ui/web_dialogs/web_dialog_delegate.h"
+#include "url/gurl.h"
+
+namespace views {
+class WebDialogView;
+class Widget;
+}
+
+namespace ash {
+
+// Delegate to handle showing the keyboard overlay drawing. Exported for test.
+class ASH_EXPORT KeyboardOverlayDelegate : public ui::WebDialogDelegate {
+ public:
+  KeyboardOverlayDelegate(const base::string16& title, const GURL& url);
+
+  // Shows the keyboard overlay widget. Returns the widget for testing.
+  views::Widget* Show(views::WebDialogView* view);
+
+  // Overridden from ui::WebDialogDelegate:
+  virtual void GetDialogSize(gfx::Size* size) const OVERRIDE;
+
+ private:
+  FRIEND_TEST_ALL_PREFIXES(KeyboardOverlayDelegateTest, ShowAndClose);
+
+  virtual ~KeyboardOverlayDelegate();
+
+  // Overridden from ui::WebDialogDelegate:
+  virtual ui::ModalType GetDialogModalType() const OVERRIDE;
+  virtual base::string16 GetDialogTitle() const OVERRIDE;
+  virtual GURL GetDialogContentURL() const OVERRIDE;
+  virtual void GetWebUIMessageHandlers(
+      std::vector<content::WebUIMessageHandler*>* handlers) const OVERRIDE;
+  virtual std::string GetDialogArgs() const OVERRIDE;
+  virtual void OnDialogClosed(const std::string& json_retval) OVERRIDE;
+  virtual void OnCloseContents(content::WebContents* source,
+                               bool* out_close_dialog) OVERRIDE;
+  virtual bool ShouldShowDialogTitle() const OVERRIDE;
+  virtual bool HandleContextMenu(
+      const content::ContextMenuParams& params) OVERRIDE;
+
+  // The dialog title.
+  base::string16 title_;
+
+  // The URL of the keyboard overlay.
+  GURL url_;
+
+  // The widget associated with this delegate. Not owned.
+  views::Widget* widget_;
+
+  DISALLOW_COPY_AND_ASSIGN(KeyboardOverlayDelegate);
+};
+
+}  // namespace ash
+
+#endif  // ASH_KEYBOARD_OVERLAY_KEYBOARD_OVERLAY_DELEGATE_H_