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

chrome/common/chrome_features.cc

Index: chrome/common/chrome_features.cc
diff --git a/chrome/common/chrome_features.cc b/chrome/common/chrome_features.cc
index 77a675b984ad17391f5ae941b78f298c10fb62e4..786a2795896deb0b2bcd8c2406ef9e14004c8950 100644
--- a/chrome/common/chrome_features.cc
+++ b/chrome/common/chrome_features.cc
@@ -21,6 +21,10 @@ const base::Feature kAllowAutoplayUnmutedInWebappManifestScope{
 // Enables Javascript execution via AppleScript.
 const base::Feature kAppleScriptExecuteJavaScript{
     "AppleScriptExecuteJavaScript", base::FEATURE_ENABLED_BY_DEFAULT};
+
+// Use the Toolkit-Views Task Manager window.
+const base::Feature kViewsTaskManager{"ViewsTaskManager",
+                                      base::FEATURE_DISABLED_BY_DEFAULT};
 #endif  // defined(OS_MACOSX)
 
 #if defined(OS_CHROMEOS)