[uber page] Split up initialization of handlers from initialization of webui pages

chrome/browser/ui/webui/options2/handler_options_handler2.cc

Index: chrome/browser/ui/webui/options2/handler_options_handler2.cc
diff --git a/chrome/browser/ui/webui/options2/handler_options_handler2.cc b/chrome/browser/ui/webui/options2/handler_options_handler2.cc
index 275a176cc99d3362a23a7d785afd4b6e484e1280..4091f4447ccff38b59071b588f2b53d9d8f881eb 100644
--- a/chrome/browser/ui/webui/options2/handler_options_handler2.cc
+++ b/chrome/browser/ui/webui/options2/handler_options_handler2.cc
@@ -45,13 +45,16 @@ void HandlerOptionsHandler::GetLocalizedValues(
   RegisterStrings(localized_strings, resources, arraysize(resources));
 }
 
-void HandlerOptionsHandler::Initialize() {
-  UpdateHandlerList();
+void HandlerOptionsHandler::InitializeHandler() {
   notification_registrar_.Add(
       this, chrome::NOTIFICATION_PROTOCOL_HANDLER_REGISTRY_CHANGED,
       content::Source<Profile>(Profile::FromWebUI(web_ui())));
 }
 
+void HandlerOptionsHandler::InitializePage() {
+  UpdateHandlerList();
+}
+
 void HandlerOptionsHandler::RegisterMessages() {
   web_ui()->RegisterMessageCallback("clearDefault",
       base::Bind(&HandlerOptionsHandler::ClearDefault,