FBTF: Even more ctor/virtual deinlining.

chrome/browser/dom_ui/dom_ui_screenshot_source.h

 // Copyright (c) 2009 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 CHROME_BROWSER_DOM_UI_DOM_UI_SCREENSHOT_SOURCE_H_
 #define CHROME_BROWSER_DOM_UI_DOM_UI_SCREENSHOT_SOURCE_H_
 
 #include <string>
 #include <utility>
 #include <vector>
@@ skipping 18 matching lines @@
 
   virtual std::string GetMimeType(const std::string&) const {
     // We need to explicitly return a mime type, otherwise if the user tries to
     // drag the image they get no extension.
     return "image/png";
   }
 
   std::vector<unsigned char> GetScreenshot(const std::string& path);
 
  private:
-  ~DOMUIScreenshotSource() {}
+  virtual ~DOMUIScreenshotSource();
 
 //  scoped_refptr<RefCountedBytes> current_screenshot_;
   std::vector<unsigned char> current_screenshot_;
   DISALLOW_COPY_AND_ASSIGN(DOMUIScreenshotSource);
 };
 
 #endif  // CHROME_BROWSER_DOM_UI_DOM_UI_SCREENSHOT_SOURCE_H_