Remove the default argument from RegKey::Open.

chrome/browser/policy/configuration_policy_provider_win.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 "chrome/browser/policy/configuration_policy_provider_win.h"
 
 #include <userenv.h>
 
 #include <algorithm>
 
@@ skipping 55 matching lines @@
   string16 location = string16(policy::kRegistrySubKey);
   string16 value_name = name;
 
   if (index > 0) {
     // This is a list value, treat |name| as a subkey.
     location += ASCIIToUTF16("\\") + name;
     value_name = base::IntToString16(index);
   }
 
   // First try the global policy.
-  if (!policy_key.Open(HKEY_LOCAL_MACHINE, location.c_str()) ||
+  if (!policy_key.Open(HKEY_LOCAL_MACHINE, location.c_str(), KEY_READ) ||
       !policy_key.ReadValue(value_name.c_str(), 0, &value_size, &key_type)) {
     policy_key.Close();
     // Fall back on user-specific policy.
-    if (!policy_key.Open(HKEY_CURRENT_USER, location.c_str()) ||
+    if (!policy_key.Open(HKEY_CURRENT_USER, location.c_str(), KEY_READ) ||
         !policy_key.ReadValue(value_name.c_str(), 0, &value_size, &key_type)) {
       return false;
     }
   }
 
   if (key_type != REG_SZ)
     return false;
 
   // According to the Microsoft documentation, the string
   // buffer may not be explicitly 0-terminated. Allocate a
@@ skipping 89 matching lines @@
         break;
       }
       default:
         NOTREACHED();
         return false;
     }
   }
 
   return true;
 }