Improve ExtensionBrowserTest. Part of moving ExtensionService to use ExtensionSet.

chrome/browser/extensions/crx_installer.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_CRX_INSTALLER_H_
 #define CHROME_BROWSER_EXTENSIONS_CRX_INSTALLER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 206 matching lines @@
 
   // Runs on File thread. Install the unpacked extension into the profile and
   // notify the frontend.
   void CompleteInstall();
 
   // Result reporting.
   void ReportFailureFromFileThread(const std::string& error);
   void ReportFailureFromUIThread(const std::string& error);
   void ReportSuccessFromFileThread();
   void ReportSuccessFromUIThread();
-  void NotifyCrxInstallComplete();
+  void NotifyCrxInstallComplete(const Extension* extension);
 
   // The file we're installing.
   FilePath source_file_;
 
   // The URL the file was downloaded from.
   GURL download_url_;
 
   // The directory extensions are installed to.
   FilePath install_directory_;
 
@@ skipping 87 matching lines @@
   extension_misc::CrxInstallCause install_cause_;
 
   // Creation flags to use for the extension.  These flags will be used
   // when calling Extenion::Create() by the crx installer.
   int creation_flags_;
 
   DISALLOW_COPY_AND_ASSIGN(CrxInstaller);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_CRX_INSTALLER_H_