Add a flag that lets the webstore show a different UI on app install.

chrome/browser/extensions/extension_webstore_private_api.h

 // Copyright (c) 2011 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_WEBSTORE_PRIVATE_API_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBSTORE_PRIVATE_API_H_
 #pragma once
 
 #include <string>
 
@@ skipping 90 matching lines @@
 
   // Sets the result_ as a string based on |code|.
   void SetResult(ResultCode code);
 
  private:
   // These store the input parameters to the function.
   std::string id_;
   std::string manifest_;
   std::string icon_data_;
   std::string localized_name_;
+  bool use_app_installed_bubble_;
 
   // The results of parsing manifest_ and icon_data_ go into these two.
   scoped_ptr<base::DictionaryValue> parsed_manifest_;
   SkBitmap icon_;
 
   // A dummy Extension object we create for the purposes of using
   // ExtensionInstallUI to prompt for confirmation of the install.
   scoped_refptr<Extension> dummy_extension_;
   DECLARE_EXTENSION_FUNCTION_NAME("webstorePrivate.beginInstallWithManifest2");
 };
@@ skipping 43 matching lines @@
   // Are we waiting for a token available notification?
   bool waiting_for_token_;
 
   // Used for listening for TokenService notifications.
   NotificationRegistrar registrar_;
 
   DECLARE_EXTENSION_FUNCTION_NAME("webstorePrivate.promptBrowserLogin");
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_WEBSTORE_PRIVATE_API_H_