Revert of Remove HostDesktopType from AppLaunchParams

chrome/browser/ui/extensions/application_launch.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/extensions/application_launch.h"
 
 #include <string>
 
 #include "apps/launcher.h"
 #include "base/macros.h"
@@ skipping 37 matching lines @@
 #include "chrome/browser/ui/browser_commands_mac.h"
 #endif
 
 using content::WebContents;
 using extensions::Extension;
 using extensions::ExtensionPrefs;
 using extensions::ExtensionRegistry;
 
 namespace {
 
-// Shows the app list for |desktop_type| and returns the app list's window.
+// Shows the app list and returns the app list's window.
 gfx::NativeWindow ShowAppListAndGetNativeWindow() {
   AppListService* app_list_service = AppListService::Get();
   app_list_service->Show();
   return app_list_service->GetAppListWindow();
 }
 
 // Attempts to launch an app, prompting the user to enable it if necessary. If
 // a prompt is required it will be shown inside the window returned by
 // |parent_window_getter|.
 // This class manages its own lifetime.
@@ skipping 339 matching lines @@
   extensions::TabHelper::FromWebContents(tab)->UpdateShortcutOnLoadComplete();
 
   return tab;
 }
 
 bool CanLaunchViaEvent(const extensions::Extension* extension) {
   const extensions::Feature* feature =
       extensions::FeatureProvider::GetAPIFeature("app.runtime");
   return feature->IsAvailableToExtension(extension).is_available();
 }