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

chrome/browser/extensions/extension_rlz_apitest.cc

Index: chrome/browser/extensions/extension_rlz_apitest.cc
diff --git a/chrome/browser/extensions/extension_rlz_apitest.cc b/chrome/browser/extensions/extension_rlz_apitest.cc
index f7f264d584217e8377a7e8c45436d34fcf1f36a4..43d2843f4b82cfdfc79e764d8825f40ef929d12f 100644
--- a/chrome/browser/extensions/extension_rlz_apitest.cc
+++ b/chrome/browser/extensions/extension_rlz_apitest.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -80,14 +80,14 @@ IN_PROC_BROWSER_TEST_F(ExtensionApiTest, Rlz) {
   ASSERT_TRUE(key.Valid());
 
   DWORD value;
-  ASSERT_EQ(ERROR_SUCCESS, key.ReadValueDW(L"D3I", &value));
+  ASSERT_EQ(ERROR_SUCCESS, key.ReadValue(L"D3I", &value));
   ASSERT_EQ(1, value);
-  ASSERT_EQ(ERROR_SUCCESS, key.ReadValueDW(L"D3S", &value));
+  ASSERT_EQ(ERROR_SUCCESS, key.ReadValue(L"D3S", &value));
   ASSERT_EQ(1, value);
-  ASSERT_EQ(ERROR_SUCCESS, key.ReadValueDW(L"D3F", &value));
+  ASSERT_EQ(ERROR_SUCCESS, key.ReadValue(L"D3F", &value));
   ASSERT_EQ(1, value);
 
-  ASSERT_EQ(ERROR_SUCCESS, key.ReadValueDW(L"D4I", &value));
+  ASSERT_EQ(ERROR_SUCCESS, key.ReadValue(L"D4I", &value));
   ASSERT_EQ(1, value);
 
   key.Open(HKEY_CURRENT_USER, L"Software\\Google\\Common\\Rlz\\Events\\D",