Cleanup: Constify more ExtensionService methods, and IWYU.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_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 "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
 #include "ash/launcher/launcher_model.h"
+#include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/test_extension_system.h"
 #include "chrome/browser/ui/ash/chrome_launcher_prefs.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/pref_names.h"
@@ skipping 262 matching lines @@
 
   GetAppLaunchers(&controller, &actual_launchers);
   EXPECT_EQ(expected_launchers, actual_launchers);
 
   // Install |extension2| and verify it shows up between the other two.
   extension_service_->AddExtension(extension2_.get());
   expected_launchers.insert(expected_launchers.begin() + 1, extension2_->id());
   GetAppLaunchers(&controller, &actual_launchers);
   EXPECT_EQ(expected_launchers, actual_launchers);
 }