Modify experimental identity flow to display scope descriptions and details.

chrome/browser/extensions/extension_install_ui.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_EXTENSION_INSTALL_UI_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_UI_H_
 #pragma once
 
 #include <string>
 
@@ skipping 32 matching lines @@
   // the default behavior in the future.
   virtual void SetUseAppInstalledBubble(bool use_bubble) = 0;
 
   // Opens apps UI and animates the app icon for the app with id |app_id|.
   static void OpenAppInstalledUI(Browser* browser, const std::string& app_id);
 
   // Disables showing UI (ErrorBox, etc.) for install failures. To be used only
   // in tests.
   static void DisableFailureUIForTests();
 
+  Browser* browser() { return browser_; }
+
  protected:
   ExtensionInstallUI();
+
+  Browser* browser_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_UI_H_