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. 14 class 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