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

chrome/installer/util/shell_util.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.
 //
 // This file defines functions that integrate Chrome in Windows shell. These
 // functions can be used by Chrome as well as Chrome installer. All of the
 // work is done by the local functions defined in anonymous namespace in
 // this class.
 
 #include "chrome/installer/util/shell_util.h"
@@ skipping 234 matching lines @@
     RegKey key(HKEY_LOCAL_MACHINE, _key_path.c_str(), KEY_READ);
     bool found = false;
     if (_is_string) {
       std::wstring read_value;
       found = (key.ReadValue(_name.c_str(), &read_value) == ERROR_SUCCESS) &&
               (read_value.size() == _value.size()) &&
               (std::equal(_value.begin(), _value.end(), read_value.begin(),
                           base::CaseInsensitiveCompare<wchar_t>()));
     } else {
       DWORD read_value;
-      found = (key.ReadValueDW(_name.c_str(), &read_value) == ERROR_SUCCESS) &&
+      found = (key.ReadValue(_name.c_str(), &read_value) == ERROR_SUCCESS) &&
               (read_value == _int_value);
     }
     key.Close();
     return found;
   }
 
   // Checks if the current registry entry exists in HKLM registry
   // (only the name).
   bool NameExistsInHKLM() const {
     RegKey key(HKEY_LOCAL_MACHINE, _key_path.c_str(), KEY_READ);
     bool found = false;
     if (_is_string) {
       std::wstring read_value;
       found = key.ReadValue(_name.c_str(), &read_value) == ERROR_SUCCESS;
     } else {
       DWORD read_value;
-      found = key.ReadValueDW(_name.c_str(), &read_value) == ERROR_SUCCESS;
+      found = key.ReadValue(_name.c_str(), &read_value) == ERROR_SUCCESS;
     }
     key.Close();
     return found;
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RegistryEntry);
 
   // Create a object that represent default value of a key
   RegistryEntry(const std::wstring& key_path, const std::wstring& value)
@@ skipping 730 matching lines @@
         chrome_exe.c_str(),                // target
         shortcut.c_str(),                  // shortcut
         chrome_path.c_str(),               // working dir
         NULL,                              // arguments
         description.c_str(),               // description
         chrome_exe.c_str(),                // icon file
         icon_index,                        // icon index
         dist->GetBrowserAppId().c_str());  // app id
   }
 }