Use OffTheRecord profile in case of GuestLogin for AppList.

chrome/browser/ui/views/ash/launcher/chrome_launcher_delegate.cc

Index: chrome/browser/ui/views/ash/launcher/chrome_launcher_delegate.cc
diff --git a/chrome/browser/ui/views/ash/launcher/chrome_launcher_delegate.cc b/chrome/browser/ui/views/ash/launcher/chrome_launcher_delegate.cc
index dbd03d2e6a09588dc1a3653f6581801685652bf1..0f6683ecc2c40d25ebe55f49a440678c528ff962 100644
--- a/chrome/browser/ui/views/ash/launcher/chrome_launcher_delegate.cc
+++ b/chrome/browser/ui/views/ash/launcher/chrome_launcher_delegate.cc
@@ -518,12 +518,5 @@ void ChromeLauncherDelegate::SetAppIconLoaderForTest(AppIconLoader* loader) {
 }
 
 Profile* ChromeLauncherDelegate::GetProfileForNewWindows() {
-  Profile* profile = ProfileManager::GetDefaultProfile();
-  if (browser_defaults::kAlwaysOpenIncognitoWindow &&
-      IncognitoModePrefs::ShouldLaunchIncognito(
-          *CommandLine::ForCurrentProcess(),
-          profile->GetPrefs())) {
-    profile = profile->GetOffTheRecordProfile();
-  }
-  return profile;
+  return ProfileManager::GetDefaultProfileOrOffTheRecord();
 }