Flip the default for the cookie prompt to disabled.

chrome/browser/cocoa/content_blocked_bubble_controller.mm

Index: chrome/browser/cocoa/content_blocked_bubble_controller.mm
diff --git a/chrome/browser/cocoa/content_blocked_bubble_controller.mm b/chrome/browser/cocoa/content_blocked_bubble_controller.mm
index 519278aa46968dfde1d6dcb23e9125f99316f288..8f3d613c3f8b4f2598a279c01f8e3096eef23e3d 100644
--- a/chrome/browser/cocoa/content_blocked_bubble_controller.mm
+++ b/chrome/browser/cocoa/content_blocked_bubble_controller.mm
@@ -362,8 +362,8 @@ NSTextField* LabelWithFrame(NSString* text, const NSRect& frame) {
 }
 
 - (void)removeInfoButton {
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(
-      switches::kDisableCookiePrompt)) {
+  if (CommandLine::ForCurrentProcess()->HasSwitch(
+      switches::kEnableCookiePrompt)) {
     // Remove info button and resize vertically.
     int deltaY = NSHeight([infoButton_ frame]);
     [infoButton_ removeFromSuperview];