[sql] Fix uninit vars in Connection.

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 <string.h>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
@@ skipping 264 matching lines @@
 Connection::Connection()
     : db_(NULL),
       page_size_(0),
       cache_size_(0),
       exclusive_locking_(false),
       restrict_to_user_(false),
       transaction_nesting_(0),
       needs_rollback_(false),
       in_memory_(false),
       poisoned_(false),
+      mmap_disabled_(false),
+      mmap_enabled_(false),
+      total_changes_at_last_release_(0),

[michaeln, 2015/09/23 22:17:22]

lgtm

maybe use c++ 11 feature that lets you assign default values in the header?

       stats_histogram_(NULL),
       commit_time_histogram_(NULL),
       autocommit_time_histogram_(NULL),
       update_time_histogram_(NULL),
       query_time_histogram_(NULL),
       clock_(new TimeSource()) {
 }
 
 Connection::~Connection() {
   Close();
@@ skipping 1181 matching lines @@
   ignore_result(Execute(kNoWritableSchema));
 
   return ret;
 }
 
 base::TimeTicks TimeSource::Now() {
   return base::TimeTicks::Now();
 }
 
 }  // namespace sql