Make ExtensionInstallPrompt::Prompt ref-counted

chrome/browser/extensions/webstore_standalone_installer.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_WEBSTORE_STANDALONE_INSTALLER_H_
 #define CHROME_BROWSER_EXTENSIONS_WEBSTORE_STANDALONE_INSTALLER_H_
 
 #include <string>
 
 #include "base/callback.h"
@@ skipping 73 matching lines @@
 
   // In the very least this should return a dummy WebContents (required
   // by some calls even when no prompt or other UI is shown). A non-dummy
   // WebContents is required if the prompt returned by CreateInstallPromt()
   // contains a navigable link(s). Returned WebContents should correspond
   // to |profile| passed into the constructor.
   virtual content::WebContents* GetWebContents() const = 0;
 
   // Should return an installation prompt with desired properties or NULL if
   // no prompt should be shown.
-  virtual scoped_ptr<ExtensionInstallPrompt::Prompt>
-      CreateInstallPrompt() const = 0;
+  virtual scoped_refptr<ExtensionInstallPrompt::Prompt> CreateInstallPrompt()
+      const = 0;
 
   // Perform all necessary checks to make sure inline install is permitted,
   // e.g. in the extension's properties in the store. The implementation may
   // choose to ignore such properties.
   virtual bool CheckInlineInstallPermitted(
       const base::DictionaryValue& webstore_data,
       std::string* error) const = 0;
 
   // Perform all necessary checks to make sure that requestor is allowed to
   // initiate this install (e.g. that the requestor's URL matches the verified
@@ skipping 83 matching lines @@
   void OnWebStoreDataFetcherDone();
 
   // Input configuration.
   std::string id_;
   Callback callback_;
   Profile* profile_;
   WebstoreInstaller::InstallSource install_source_;
 
   // Installation dialog and its underlying prompt.
   scoped_ptr<ExtensionInstallPrompt> install_ui_;
-  scoped_ptr<ExtensionInstallPrompt::Prompt> install_prompt_;
+  scoped_refptr<ExtensionInstallPrompt::Prompt> install_prompt_;
 
   // For fetching webstore JSON data.
   scoped_ptr<WebstoreDataFetcher> webstore_data_fetcher_;
 
   // Extracted from the webstore JSON data response.
   std::string localized_name_;
   std::string localized_description_;
   bool show_user_count_;
   std::string localized_user_count_;
   double average_rating_;
   int rating_count_;
   scoped_ptr<base::DictionaryValue> webstore_data_;
   scoped_ptr<base::DictionaryValue> manifest_;
   SkBitmap icon_;
 
   // Created by ShowInstallUI() when a prompt is shown (if
   // the implementor returns a non-NULL in CreateInstallPrompt()).
   scoped_refptr<Extension> localized_extension_for_display_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebstoreStandaloneInstaller);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_STANDALONE_INSTALLER_H_