A tricky fix for Issue 1845....

chrome/browser/renderer_host/render_widget_host.cc

Index: chrome/browser/renderer_host/render_widget_host.cc
===================================================================
--- chrome/browser/renderer_host/render_widget_host.cc	(revision 11937)
+++ chrome/browser/renderer_host/render_widget_host.cc	(working copy)
@@ -53,7 +53,9 @@
       mouse_move_pending_(false),
       needs_repainting_on_restore_(false),
       is_unresponsive_(false),
-      view_being_painted_(false) {
+      view_being_painted_(false),
+      text_direction_updated_(false),
+      text_direction_(WEB_TEXT_DIRECTION_LTR) {
   if (routing_id_ == MSG_ROUTING_NONE)
     routing_id_ = process_->GetNextRoutingID();
 
@@ -356,6 +358,19 @@
   return gfx::Rect();
 }
 
+void RenderWidgetHost::UpdateTextDirection(WebTextDirection direction) {
+  text_direction_updated_ = true;
+  text_direction_ = direction;
+}
+
+void RenderWidgetHost::NotifyTextDirection() {
+  if (text_direction_updated_) {
+    text_direction_updated_ = false;
+    Send(new ViewMsg_SetTextDirection(routing_id(),
+                                      text_direction_));
+  }
+}
+
 void RenderWidgetHost::Destroy() {
   NotificationService::current()->Notify(
       NotificationType::RENDER_WIDGET_HOST_DESTROYED,