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

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

Index: chrome/browser/ui/webui/options2/handler_options_handler2.h
diff --git a/chrome/browser/ui/webui/options2/handler_options_handler2.h b/chrome/browser/ui/webui/options2/handler_options_handler2.h
index ea60f43e7d1511b6fceabb83f5d0c901d914ba58..3d2fcdb93635d48186e9f9b33fc97768cbc79421 100644
--- a/chrome/browser/ui/webui/options2/handler_options_handler2.h
+++ b/chrome/browser/ui/webui/options2/handler_options_handler2.h
@@ -12,6 +12,13 @@
 #include "chrome/common/custom_handlers/protocol_handler.h"
 #include "content/public/browser/notification_registrar.h"
 
+////////////////////////////////////////////////////////////////////////////////
+// HandlerOptionsHandler
+
+// Listen for changes to protocol handlers (i.e. registerProtocolHandler()).
+// This get triggered whenever a user allows a specific website or application
+// to handle clicks on a link with a specified protocol (i.e. mailto: -> Gmail).
+
 namespace base {
 class DictionaryValue;
 }
@@ -26,7 +33,8 @@ class HandlerOptionsHandler : public OptionsPageUIHandler {
   // OptionsPageUIHandler implementation.
   virtual void GetLocalizedValues(
       base::DictionaryValue* localized_strings) OVERRIDE;
-  virtual void Initialize() OVERRIDE;
+  virtual void InitializeHandler() OVERRIDE;
+  virtual void InitializePage() OVERRIDE;
   virtual void RegisterMessages() OVERRIDE;
 
   // content::NotificationObserver implementation.