Fix Chrome crash when opening feedback in incognito.

chrome/browser/extensions/api/feedback_private/feedback_private_api.h

Index: chrome/browser/extensions/api/feedback_private/feedback_private_api.h
diff --git a/chrome/browser/extensions/api/feedback_private/feedback_private_api.h b/chrome/browser/extensions/api/feedback_private/feedback_private_api.h
index a3def8f164273dc97529dab310de7240e0d5db7b..278bba00c22550bdaa45244ab669edc27dbba14c 100644
--- a/chrome/browser/extensions/api/feedback_private/feedback_private_api.h
+++ b/chrome/browser/extensions/api/feedback_private/feedback_private_api.h
@@ -38,6 +38,8 @@ class FeedbackPrivateAPI : public ProfileKeyedAPI {
     return "FeedbackPrivateAPI";
   }
 
+  static const bool kServiceRedirectedInIncognito = true;
+
   Profile* const profile_;
   FeedbackService* service_;
 };