A tricky fix for Issue 1845 (Take 2)....

chrome/browser/renderer_host/render_widget_host.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/renderer_host/render_widget_host.h"
 
 #include "base/gfx/native_widget_types.h"
 #include "base/histogram.h"
 #include "base/message_loop.h"
 #include "base/keyboard_codes.h"
 #include "chrome/browser/renderer_host/backing_store.h"
 #include "chrome/browser/renderer_host/render_process_host.h"
 #include "chrome/browser/renderer_host/render_widget_helper.h"
 #include "chrome/browser/renderer_host/render_widget_host_view.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/views/view.h"
 #include "webkit/glue/webcursor.h"
 #include "webkit/glue/webinputevent.h"
+#include "webkit/glue/webtextdirection.h"
 
 #if defined(OS_WIN)
 #include "base/gfx/gdi_util.h"
 #include "chrome/app/chrome_dll_resource.h"
 #include "chrome/common/win_util.h"
 #endif  // defined(OS_WIN)
 
 using base::Time;
 using base::TimeDelta;
 using base::TimeTicks;
@@ skipping 16 matching lines @@
       process_(process),
       routing_id_(routing_id),
       is_loading_(false),
       is_hidden_(false),
       repaint_ack_pending_(false),
       resize_ack_pending_(false),
       suppress_view_updating_(false),
       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();
 
   process_->Attach(this, routing_id_);
   // Because the widget initializes as is_hidden_ == false,
   // tell the process host that we're alive.
   process_->WidgetRestored();
 }
 
 RenderWidgetHost::~RenderWidgetHost() {
@@ skipping 278 matching lines @@
   is_hidden_ = false;
 
   if (view_) {
     view_->RenderViewGone();
     view_ = NULL;  // The View should be deleted by RenderViewGone.
   }
 
   BackingStoreManager::RemoveBackingStore(this);
 }
 
+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(),
+                                      static_cast<int>(text_direction_)));
+  }
+}
+
 gfx::Rect RenderWidgetHost::GetRootWindowResizerRect() const {
   return gfx::Rect();
 }
 
 void RenderWidgetHost::Destroy() {
   NotificationService::current()->Notify(
       NotificationType::RENDER_WIDGET_HOST_DESTROYED,
       Source<RenderWidgetHost>(this),
       NotificationService::NoDetails());
 
@@ skipping 298 matching lines @@
 
   // TODO(darin): do we need to do something else if our backing store is not
   // the same size as the advertised view?  maybe we just assume there is a
   // full paint on its way?
   BackingStore* backing_store = BackingStoreManager::Lookup(this);
   if (!backing_store || (backing_store->size() != view_size))
     return;
   backing_store->ScrollRect(process_->process().handle(), bitmap, bitmap_rect,
                             dx, dy, clip_rect, view_size);
 }