Cleanup Registry API part 2:

base/registry.cc

 // Copyright (c) 2010 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 "base/registry.h"
 
 #include <shlwapi.h>
 
 #include "base/logging.h"
 
@@ skipping 127 matching lines @@
   if (rootkey) {
     if (access & (KEY_SET_VALUE | KEY_CREATE_SUB_KEY | KEY_CREATE_LINK))
       Create(rootkey, subkey, access);
     else
       Open(rootkey, subkey, access);
   } else {
     DCHECK(!subkey);
   }
 }
 
+RegKey::~RegKey() {
+  Close();
+}
+
 void RegKey::Close() {
   StopWatching();
   if (key_) {
     ::RegCloseKey(key_);
     key_ = NULL;
   }
 }
 
 bool RegKey::Create(HKEY rootkey, const wchar_t* subkey, REGSAM access) {
   DWORD disposition_value;
@@ skipping 205 matching lines @@
 
 bool RegKey::HasChanged() {
   if (watch_event_) {
     if (WaitForSingleObject(watch_event_, 0) == WAIT_OBJECT_0) {
       StartWatching();
       return true;
     }
   }
   return false;
 }