[WIP] add "auto" attr in notifications

Source/modules/notifications/Notification.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 149 matching lines @@
     ASSERT(m_state == NotificationStateIdle);
     if (Notification::checkPermission(executionContext()) != WebNotificationPermissionAllowed) {
         dispatchErrorEvent();
         return;
     }
 
     SecurityOrigin* origin = executionContext()->securityOrigin();
     ASSERT(origin);
 
     // FIXME: Do CSP checks on the associated notification icon.
-    WebNotificationData::Direction dir = m_dir == "rtl" ? WebNotificationData::DirectionRightToLeft : WebNotificationData::DirectionLeftToRight;
+    WebNotificationData::Direction dir = directionStringToEnum(m_dir);
 
     // The lifetime and availability of non-persistent notifications is tied to the page
     // they were created by, and thus the data doesn't have to be known to the embedder.
     String emptyDataAsWireString;
     WebNotificationData notificationData(m_title, dir, m_lang, m_body, m_tag, m_iconUrl, m_silent, emptyDataAsWireString);
     notificationManager()->show(WebSerializedOrigin(*origin), notificationData, this);
 
     m_state = NotificationStateShowing;
 }
 
@@ skipping 39 matching lines @@
 {
     // The notification will be showing when the user initiated the close, or it will be
     // closing if the developer initiated the close.
     if (m_state != NotificationStateShowing && m_state != NotificationStateClosing)
         return;
 
     m_state = NotificationStateClosed;
     dispatchEvent(Event::create(EventTypeNames::close));
 }
 
-TextDirection Notification::direction() const
-{
-    // FIXME: Resolve dir()=="auto" against the document.
-    return dir() == "rtl" ? RTL : LTR;
-}
-
 String Notification::permissionString(WebNotificationPermission permission)
 {
     switch (permission) {
     case WebNotificationPermissionAllowed:
         return "granted";
     case WebNotificationPermissionDenied:
         return "denied";
     case WebNotificationPermissionDefault:
         return "default";
     }
 
     ASSERT_NOT_REACHED();
     return "denied";
 }
 
+WebNotificationData Notification::directionStringToEnum(String direction)
+{
+    switch (direction) {
+    case "ltr":
+        return DirectionLeftToRight;
+    case "rtl":
+        return DirectionRightToLeft;
+    case "auto":
+        return DirectionAuto;
+    }
+
+    ASSERT_NOT_REACHED();
+    return DirectionAuto;
+}
+
 String Notification::permission(ExecutionContext* context)
 {
     return permissionString(checkPermission(context));
 }
 
 WebNotificationPermission Notification::checkPermission(ExecutionContext* context)
 {
     SecurityOrigin* origin = context->securityOrigin();
     ASSERT(origin);
 
@@ skipping 41 matching lines @@
     return ScriptValue(scriptState, m_serializedData->deserialize(scriptState->isolate()));
 }
 
 DEFINE_TRACE(Notification)
 {
     RefCountedGarbageCollectedEventTargetWithInlineData<Notification>::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace blink