1// Copyright 2013 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_PRINTING_PRINTING_UI_WEB_CONTENTS_OBSERVER_H_
6#define CHROME_BROWSER_PRINTING_PRINTING_UI_WEB_CONTENTS_OBSERVER_H_
7
8#include "base/basictypes.h"
9#include "content/public/browser/web_contents_observer.h"
10#include "ui/gfx/native_widget_types.h"
11
12// Wrapper used to keep track of the lifetime of a WebContents.
13// Lives on the UI thread.
14class PrintingUIWebContentsObserver : public content::WebContentsObserver {
15 public:
16  explicit PrintingUIWebContentsObserver(content::WebContents* web_contents);
17
18  // Return the parent NativeView of the observed WebContents.
19  gfx::NativeView GetParentView();
20
21 private:
22  DISALLOW_COPY_AND_ASSIGN(PrintingUIWebContentsObserver);
23};
24
25#endif  // CHROME_BROWSER_PRINTING_PRINTING_UI_WEB_CONTENTS_OBSERVER_H_
26