Remove use of deprecated base::ListValue::Append(Value*) overload in extensions.

chrome/browser/extensions/browser_extension_window_controller.h

 // 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 CHROME_BROWSER_EXTENSIONS_BROWSER_EXTENSION_WINDOW_CONTROLLER_H_
 #define CHROME_BROWSER_EXTENSIONS_BROWSER_EXTENSION_WINDOW_CONTROLLER_H_
 
 #include "base/macros.h"
 #include "chrome/browser/extensions/window_controller.h"
 
 class Browser;
 
 namespace extensions {
 class Extension;
 }
 
 class BrowserExtensionWindowController : public extensions::WindowController {
  public:
   explicit BrowserExtensionWindowController(Browser* browser);
   ~BrowserExtensionWindowController() override;
 
   // extensions::WindowController implementation.
   int GetWindowId() const override;
   std::string GetWindowTypeText() const override;
   std::unique_ptr<base::DictionaryValue> CreateWindowValueWithTabs(
       const extensions::Extension* extension) const override;
-  base::DictionaryValue* CreateTabValue(const extensions::Extension* extension,
-                                        int tab_index) const override;
   std::unique_ptr<extensions::api::tabs::Tab> CreateTabObject(
       const extensions::Extension* extension,
       int tab_index) const override;
   bool CanClose(Reason* reason) const override;
   void SetFullscreenMode(bool is_fullscreen,
                          const GURL& extension_url) const override;
   Browser* GetBrowser() const override;
   bool IsVisibleToExtension(
       const extensions::Extension* extension) const override;
 
  private:
   Browser* browser_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserExtensionWindowController);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_BROWSER_EXTENSION_WINDOW_CONTROLLER_H_