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

chrome/browser/ui/webui/options2/import_data_handler2.cc

Index: chrome/browser/ui/webui/options2/import_data_handler2.cc
diff --git a/chrome/browser/ui/webui/options2/import_data_handler2.cc b/chrome/browser/ui/webui/options2/import_data_handler2.cc
index 7a1ffe35ed4489a8b4b32620910d27e998800742..834eb85d24e4887bd24e2d7860872d753c57069a 100644
--- a/chrome/browser/ui/webui/options2/import_data_handler2.cc
+++ b/chrome/browser/ui/webui/options2/import_data_handler2.cc
@@ -32,7 +32,7 @@ ImportDataHandler::ImportDataHandler() : importer_host_(NULL),
 }
 
 ImportDataHandler::~ImportDataHandler() {
-  if (importer_list_)
+  if (importer_list_.get())
     importer_list_->SetObserver(NULL);
 
   if (importer_host_)
@@ -61,7 +61,7 @@ void ImportDataHandler::GetLocalizedValues(DictionaryValue* localized_strings) {
                 IDS_IMPORT_SETTINGS_TITLE);
 }
 
-void ImportDataHandler::Initialize() {
+void ImportDataHandler::InitializeHandler() {
   Profile* profile = Profile::FromWebUI(web_ui());
   importer_list_ = new ImporterList(profile->GetRequestContext());
   importer_list_->DetectSourceProfiles(this);
@@ -128,6 +128,13 @@ void ImportDataHandler::ImportData(const ListValue* args) {
 }
 
 void ImportDataHandler::OnSourceProfilesLoaded() {
+  InitializePage();
+}
+
+void ImportDataHandler::InitializePage() {
+  if (!importer_list_->source_profiles_loaded())
+    return;
+
   ListValue browser_profiles;
   for (size_t i = 0; i < importer_list_->count(); ++i) {
     const importer::SourceProfile& source_profile =