cocoa: add --use-views-task-manager

chrome/common/chrome_features.cc

 // Copyright 2016 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/common/chrome_features.h"
 
 #include "extensions/features/features.h"
 #include "ppapi/features/features.h"
 
 namespace features {
 
 // All features in alphabetical order.
 
 #if defined(OS_ANDROID)
 const base::Feature kAllowAutoplayUnmutedInWebappManifestScope{
     "AllowAutoplayUnmutedInWebappManifestScope",
     base::FEATURE_ENABLED_BY_DEFAULT};
 #endif  // defined(OS_ANDROID)
 
 #if defined(OS_MACOSX)
 // Enables Javascript execution via AppleScript.
 const base::Feature kAppleScriptExecuteJavaScript{
     "AppleScriptExecuteJavaScript", base::FEATURE_ENABLED_BY_DEFAULT};
+const base::Feature kViewsTaskManager{"ViewsTaskManager",

[tapted, 2017/03/13 02:03:06]

nit: add a comment. (see chrome_features.h:18) E.g.

// Use the Toolkit-Views based Task Manager window.

+                                      base::FEATURE_DISABLED_BY_DEFAULT};
 #endif  // defined(OS_MACOSX)
 
 #if defined(OS_CHROMEOS)
 // Whether to handle low memory kill of ARC apps by Chrome.
 const base::Feature kArcMemoryManagement{
     "ArcMemoryManagement", base::FEATURE_ENABLED_BY_DEFAULT};
 #endif  // defined(OS_CHROMEOS)
 
 // If enabled, the list of content suggestions on the New Tab page will contain
 // assets (e.g. books, pictures, audio) that the user downloaded for later use.
@@ skipping 256 matching lines @@
 // Enables or disables emoji, handwriting and voice input on opt-in IME menu.
 const base::Feature kEHVInputOnImeMenu{"EmojiHandwritingVoiceInput",
                                        base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enables or disables flash component updates on Chrome OS.
 const base::Feature kCrosCompUpdates{"CrosCompUpdates",
                                      base::FEATURE_ENABLED_BY_DEFAULT};
 #endif  // defined(OS_CHROMEOS)
 
 }  // namespace features