Never create an app list for an incognito profile.

chrome/browser/ui/app_list/app_list_service_mac.mm

Index: chrome/browser/ui/app_list/app_list_service_mac.mm
diff --git a/chrome/browser/ui/app_list/app_list_service_mac.mm b/chrome/browser/ui/app_list/app_list_service_mac.mm
index f703c82d7533861a003a8282bb07d12495c51fe5..58a4863978761d225ec7f7cf40416ad946c97a1b 100644
--- a/chrome/browser/ui/app_list/app_list_service_mac.mm
+++ b/chrome/browser/ui/app_list/app_list_service_mac.mm
@@ -383,10 +383,11 @@ Profile* AppListServiceMac::GetCurrentAppListProfile() {
 }
 
 void AppListServiceMac::CreateForProfile(Profile* requested_profile) {
-  if (profile_ == requested_profile)
+  DCHECK(requested_profile);
+  if (profile_ && requested_profile->IsSameProfile(profile_))
     return;
 
-  profile_ = requested_profile;
+  profile_ = requested_profile->GetOriginalProfile();
 
   if (!window_controller_)
     window_controller_.reset([[AppListWindowController alloc] init]);
@@ -402,7 +403,7 @@ void AppListServiceMac::ShowForProfile(Profile* requested_profile) {
 
   InvalidatePendingProfileLoads();
 
-  if (requested_profile == profile_) {
+  if (profile_ && requested_profile->IsSameProfile(profile_)) {
     ShowWindowNearDock();
     return;
   }