Offer user to send feedback from profile error dialog

components/history/core/browser/history_database.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/history/core/browser/history_database.h"
 
 #include <stdint.h>
 
 #include <algorithm>
 #include <set>
@@ skipping 241 matching lines @@
 
 void HistoryDatabase::BeginTransaction() {
   db_.BeginTransaction();
 }
 
 void HistoryDatabase::CommitTransaction() {
   db_.CommitTransaction();
 }
 
 void HistoryDatabase::RollbackTransaction() {
-  db_.RollbackTransaction();
+  if (db_.transaction_nesting())
+    db_.RollbackTransaction();
 }
 
 bool HistoryDatabase::RecreateAllTablesButURL() {
   if (!DropVisitTable())
     return false;
   if (!InitVisitTable())
     return false;
 
   if (!DropKeywordSearchTermsTable())
     return false;
@@ skipping 264 matching lines @@
       "SET visit_time = visit_time + 11644473600000000 "
       "WHERE id IN (SELECT id FROM visits WHERE visit_time > 0);"));
   ignore_result(db_.Execute(
       "UPDATE segment_usage "
       "SET time_slot = time_slot + 11644473600000000 "
       "WHERE id IN (SELECT id FROM segment_usage WHERE time_slot > 0);"));
 }
 #endif
 
 }  // namespace history