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

chrome/browser/ui/webui/options2/search_engine_manager_handler2.cc

Index: chrome/browser/ui/webui/options2/search_engine_manager_handler2.cc
diff --git a/chrome/browser/ui/webui/options2/search_engine_manager_handler2.cc b/chrome/browser/ui/webui/options2/search_engine_manager_handler2.cc
index 999269a67d43d6d739d500db386468cb770e8335..cf0a6ad85503f349dfcfa60bca66a85561c97462 100644
--- a/chrome/browser/ui/webui/options2/search_engine_manager_handler2.cc
+++ b/chrome/browser/ui/webui/options2/search_engine_manager_handler2.cc
@@ -44,10 +44,12 @@ SearchEngineManagerHandler::~SearchEngineManagerHandler() {
 void SearchEngineManagerHandler::Initialize() {
   list_controller_.reset(
       new KeywordEditorController(Profile::FromWebUI(web_ui())));
-  if (list_controller_.get()) {
-    list_controller_->table_model()->SetObserver(this);
-    OnModelChanged();
-  }
+  DCHECK(list_controller_.get());
+  list_controller_->table_model()->SetObserver(this);
+}
+
+void SearchEngineManagerHandler::SendPageValues() {
+  OnModelChanged();
 }
 
 void SearchEngineManagerHandler::GetLocalizedValues(
@@ -115,6 +117,7 @@ void SearchEngineManagerHandler::RegisterMessages() {
 }
 
 void SearchEngineManagerHandler::OnModelChanged() {
+  DCHECK(list_controller_.get());
   if (!list_controller_->loaded())
     return;