base/win: Add documentation to RegKey::Read/Write functions.

remoting/host/plugin/policy_hack/nat_policy_win.cc

 // Copyright (c) 2011 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.
 
 // Most of this code is copied from various classes in
 // src/chrome/browser/policy. In particular, look at
 //
 //   configuration_policy_provider_delegate_win.{h,cc}
 //   configuration_policy_loader_win.{h,cc}
 //
@@ skipping 97 matching lines @@
 
     if (user_policy_watcher_failed_ || machine_policy_watcher_failed_) {
       ScheduleFallbackReloadTask();
     }
   }
 
   bool GetRegistryPolicyInteger(const string16& value_name,
                                 uint32* result) const {
     DWORD value = 0;
     RegKey policy_key(HKEY_LOCAL_MACHINE, kRegistrySubKey, KEY_READ);
-    if (policy_key.ReadValueDW(value_name.c_str(), &value) == ERROR_SUCCESS) {
+    if (policy_key.ReadValue(value_name.c_str(), &value) == ERROR_SUCCESS) {
       *result = value;
       return true;
     }
 
     if (policy_key.Open(HKEY_CURRENT_USER, kRegistrySubKey, KEY_READ) ==
         ERROR_SUCCESS) {
-      if (policy_key.ReadValueDW(value_name.c_str(), &value) == ERROR_SUCCESS) {
+      if (policy_key.ReadValue(value_name.c_str(), &value) == ERROR_SUCCESS) {
         *result = value;
         return true;
       }
     }
     return false;
   }
 
   bool GetRegistryPolicyBoolean(const string16& value_name,
                                 bool* result) const {
     uint32 local_result = 0;
@@ skipping 40 matching lines @@
   bool user_policy_watcher_failed_;
   bool machine_policy_watcher_failed_;
 };
 
 NatPolicy* NatPolicy::Create(base::MessageLoopProxy* message_loop_proxy) {
   return new NatPolicyWin(message_loop_proxy);
 }
 
 }  // namespace policy_hack
 }  // namespace remoting