Enable streamlined-apps flag on Chrome for Mac.

chrome/browser/ui/browser_dialogs.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_BROWSER_DIALOGS_H_
 #define CHROME_BROWSER_UI_BROWSER_DIALOGS_H_
 
 #include "base/callback.h"
 #include "chrome/browser/profiles/profile_window.h"
 #include "content/public/common/signed_certificate_timestamp_id_and_status.h"
@@ skipping 47 matching lines @@
 // Shows or hide the hung renderer dialog for the given WebContents.
 // We need to pass the WebContents to the dialog, because multiple tabs can hang
 // and it needs to keep track of which tabs are currently hung.
 void ShowHungRendererDialog(content::WebContents* contents);
 void HideHungRendererDialog(content::WebContents* contents);
 
 // Shows or hides the Task Manager. |browser| can be NULL when called from Ash.
 void ShowTaskManager(Browser* browser);
 void HideTaskManager();
 
-#if !defined(OS_MACOSX)
 // Shows the create web app shortcut dialog box.

[jackhou1, 2014/11/27 05:51:52]

This can stay if-defed out too.

[mitchellj, 2014/11/27 23:29:45]

Done.

 void ShowCreateWebAppShortcutsDialog(gfx::NativeWindow parent_window,
                                      content::WebContents* web_contents);
-#endif
 
 // Shows the create chrome app shortcut dialog box.
 // |close_callback| may be null.
 void ShowCreateChromeAppShortcutsDialog(
     gfx::NativeWindow parent_window,
     Profile* profile,
     const extensions::Extension* app,
     const base::Callback<void(bool /* created */)>& close_callback);
 
 // Shows a color chooser that reports to the given WebContents.
@@ skipping 15 matching lines @@
 
 // Shows the ManagePasswords bubble for a particular |web_contents|.
 void ShowManagePasswordsBubble(content::WebContents* web_contents);
 
 // Closes the bubble if it's shown for |web_contents|.
 void CloseManagePasswordsBubble(content::WebContents* web_contents);
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_UI_BROWSER_DIALOGS_H_