[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..71720637f7c32dcdd0d50046cb05f4adc43f0423 100644
--- a/chrome/browser/ui/webui/options2/import_data_handler2.cc
+++ b/chrome/browser/ui/webui/options2/import_data_handler2.cc
@@ -28,7 +28,8 @@
 namespace options2 {
 
 ImportDataHandler::ImportDataHandler() : importer_host_(NULL),
-                                         import_did_succeed_(false) {
+                                         import_did_succeed_(false),
+                                         profiles_loaded_(false) {
 }
 
 ImportDataHandler::~ImportDataHandler() {
@@ -61,9 +62,10 @@ 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());
+  profiles_loaded_ = false;
   importer_list_->DetectSourceProfiles(this);
 }
 
@@ -128,6 +130,14 @@ void ImportDataHandler::ImportData(const ListValue* args) {
 }
 
 void ImportDataHandler::OnSourceProfilesLoaded() {
+  profiles_loaded_ = true;
+  InitializePage();
+}
+
+void ImportDataHandler::InitializePage() {
+  if (!profiles_loaded_)
+    return;
+
   ListValue browser_profiles;
   for (size_t i = 0; i < importer_list_->count(); ++i) {
     const importer::SourceProfile& source_profile =