Linux/ChromeOS Chromium style checker cleanup, chrome/browser/extensions edition.

chrome/browser/extensions/updater/extension_updater_unittest.cc

 // 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.
 
 #include <list>
 #include <map>
 #include <set>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 353 matching lines @@
   explicit ServiceForDownloadTests(TestExtensionPrefs* prefs)
       : MockService(prefs) {
   }
 
   // Add a fake crx installer to be returned by a call to UpdateExtension()
   // with a specific ID.  Caller keeps ownership of |crx_installer|.
   void AddFakeCrxInstaller(const std::string& id, CrxInstaller* crx_installer) {
     fake_crx_installers_[id] = crx_installer;
   }
 
-  bool UpdateExtension(
+  virtual bool UpdateExtension(
       const std::string& id,
       const FilePath& extension_path,
       const GURL& download_url,
       CrxInstaller** out_crx_installer) OVERRIDE {
     extension_id_ = id;
     install_path_ = extension_path;
     download_url_ = download_url;
 
     if (ContainsKey(fake_crx_installers_, id)) {
       *out_crx_installer = fake_crx_installers_[id];
@@ skipping 1309 matching lines @@
 // -prodversionmin (shouldn't update if browser version too old)
 // -manifests & updates arriving out of order / interleaved
 // -malformed update url (empty, file://, has query, has a # fragment, etc.)
 // -An extension gets uninstalled while updates are in progress (so it doesn't
 //  "come back from the dead")
 // -An extension gets manually updated to v3 while we're downloading v2 (ie
 //  you don't get downgraded accidentally)
 // -An update manifest mentions multiple updates
 
 }  // namespace extensions