[sql] Database recovery system for Shortcuts.

sql/connection.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 "sql/connection.h"
 
 #include <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
@@ skipping 248 matching lines @@
 
 // static
 void Connection::set_mmap_disabled_by_default() {
     g_mmap_disabled_default = true;
 }
 
 
 void Connection::ReportDiagnosticInfo(int extended_error, Statement* stmt) {
   AssertIOAllowed();
 
+  // Trim extended error codes.
+  const int error = (extended_error & 0xFF);
   std::string debug_info;
-  const int error = (extended_error & 0xFF);
   if (error == SQLITE_CORRUPT) {
     // CollectCorruptionInfo() is implemented in terms of sql::Connection,
     // prevent reentrant calls to the error callback.
     // TODO(shess): Rewrite IntegrityCheckHelper() in terms of raw SQLite.
     ErrorCallback original_callback = std::move(error_callback_);
     reset_error_callback();
 
     debug_info = CollectCorruptionInfo();
 
     error_callback_ = std::move(original_callback);
@@ skipping 1701 matching lines @@
   ignore_result(Execute(kNoWritableSchema));
 
   return ret;
 }
 
 base::TimeTicks TimeSource::Now() {
   return base::TimeTicks::Now();
 }
 
 }  // namespace sql