disable extension toolstrips by default, adding

chrome/browser/extensions/extensions_service_unittest.cc

 // Copyright (c) 2006-2009 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 <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/json/json_reader.h"
@@ skipping 202 matching lines @@
     // Drop our reference to ExtensionsService now, so that it can be destroyed
     // while ChromeThreads and MessageLoop are still around (they are used
     // in the ExtensionsService destruction process).
     service_ = NULL;
   }
 
   virtual void InitializeExtensionsService(const FilePath& pref_file,
       const FilePath& extensions_install_dir) {
     prefs_.reset(new PrefService(pref_file));
     profile_.reset(new TestingProfile());
+
+    CommandLine::ForCurrentProcess()->AppendSwitch(
+        switches::kEnableExtensionToolstrips);
     service_ = new ExtensionsService(profile_.get(),
                                      CommandLine::ForCurrentProcess(),
                                      prefs_.get(),
                                      extensions_install_dir,
                                      false);
     service_->set_extensions_enabled(true);
     service_->set_show_extensions_prompts(false);
 
     // When we start up, we want to make sure there is no external provider,
     // since the ExtensionService on Windows will use the Registry as a default
@@ skipping 1359 matching lines @@
 
   recorder.set_ready(false);
   command_line.reset(new CommandLine(CommandLine::ARGUMENTS_ONLY));
   service = new ExtensionsService(&profile, command_line.get(),
       profile.GetPrefs(), install_dir, false);
   EXPECT_FALSE(service->extensions_enabled());
   service->Init();
   loop.RunAllPending();
   EXPECT_TRUE(recorder.ready());
 }