WebUI TaskManager: make it default on Chrome OS

chrome/browser/ui/views/frame/browser_view.cc

Index: chrome/browser/ui/views/frame/browser_view.cc
diff --git a/chrome/browser/ui/views/frame/browser_view.cc b/chrome/browser/ui/views/frame/browser_view.cc
index ee6bb9b44644cc2c4023c588ff6dbf25c58ad087..fe2306abb7ca5a514fbe3d6f51db7d456daec129 100644
--- a/chrome/browser/ui/views/frame/browser_view.cc
+++ b/chrome/browser/ui/views/frame/browser_view.cc
@@ -1051,7 +1051,7 @@ void BrowserView::ShowCompactLocationBarUnderSelectedTab() {
 }
 
 void BrowserView::ShowTaskManager() {
-#if defined(TOUCH_UI)
+#if defined(WEBUI_TASK_MANAGER)
   TaskManagerDialog::Show();
 #else
   // Uses WebUI TaskManager when swiches is set. It is beta feature.
@@ -1061,7 +1061,7 @@ void BrowserView::ShowTaskManager() {
   } else {
     browser::ShowTaskManager();
   }
-#endif  // defined(TOUCH_UI)
+#endif  // defined(WEBUI_TASK_MANAGER)
 }
 
 void BrowserView::ShowBackgroundPages() {