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

chrome_frame/utils.cc

Index: chrome_frame/utils.cc
diff --git a/chrome_frame/utils.cc b/chrome_frame/utils.cc
index 82436f3fe8e98b3372b0db5228b520cc4387e50c..764e82bb615de5a8aee3d90b8d7c4828f07b3477 100644
--- a/chrome_frame/utils.cc
+++ b/chrome_frame/utils.cc
@@ -649,7 +649,7 @@ int GetConfigInt(int default_value, const wchar_t* value_name) {
   RegKey config_key;
   if (config_key.Open(HKEY_CURRENT_USER, kChromeFrameConfigKey,
                       KEY_QUERY_VALUE) == ERROR_SUCCESS) {
-    config_key.ReadValueDW(value_name, reinterpret_cast<DWORD*>(&ret));
+    config_key.ReadValue(value_name, reinterpret_cast<DWORD*>(&ret));
   }
 
   return ret;
@@ -701,7 +701,7 @@ bool IsGcfDefaultRenderer() {
     RegKey config_key;
     if (config_key.Open(HKEY_CURRENT_USER, kChromeFrameConfigKey,
                         KEY_READ) == ERROR_SUCCESS) {
-      config_key.ReadValueDW(kEnableGCFRendererByDefault, &is_default);
+      config_key.ReadValue(kEnableGCFRendererByDefault, &is_default);
     }
   }
 
@@ -732,8 +732,8 @@ RendererType RendererTypeForUrl(const std::wstring& url) {
 
   const wchar_t* url_list_name = NULL;
   int render_in_cf_by_default = FALSE;
-  config_key.ReadValueDW(kEnableGCFRendererByDefault,
-                         reinterpret_cast<DWORD*>(&render_in_cf_by_default));
+  config_key.ReadValue(kEnableGCFRendererByDefault,
+                       reinterpret_cast<DWORD*>(&render_in_cf_by_default));
   if (render_in_cf_by_default) {
     url_list_name = kRenderInHostUrlList;
     renderer_type = RENDERER_TYPE_CHROME_DEFAULT_RENDERER;