Make ServerBoundCertStore interface async, move SQLiteServerBoundCertStore load onto DB thread.

chrome/browser/browsing_data/browsing_data_remover.h

Index: chrome/browser/browsing_data/browsing_data_remover.h
diff --git a/chrome/browser/browsing_data/browsing_data_remover.h b/chrome/browser/browsing_data/browsing_data_remover.h
index 7222237bee2f931b97357304d24963f6b995611f..9cc02b035cab93370804d542515237b86138ec29 100644
--- a/chrome/browser/browsing_data/browsing_data_remover.h
+++ b/chrome/browser/browsing_data/browsing_data_remover.h
@@ -321,6 +321,11 @@ class BrowsingDataRemover : public content::NotificationObserver,
   void ClearServerBoundCertsOnIOThread(
       net::URLRequestContextGetter* rq_context);
 
+  // Callback on IO Thread when server bound certs have been deleted. Clears SSL
+  // connection pool and posts to UI thread to run OnClearedServerBoundCerts.
+  void OnClearedServerBoundCertsOnIOThread(
+      net::URLRequestContextGetter* rq_context);
+
   // Callback when server bound certs have been deleted. Invokes
   // NotifyAndDeleteIfDone.
   void OnClearedServerBoundCerts();