webkit: Remove use of ALLOW_THIS_IN_INITIALIZER_LIST.

webkit/plugins/ppapi/ppb_scrollbar_impl.cc

 // Copyright (c) 2012 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 "webkit/plugins/ppapi/ppb_scrollbar_impl.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop.h"
 #include "ppapi/c/dev/ppp_scrollbar_dev.h"
@@ skipping 28 matching lines @@
 PP_Resource PPB_Scrollbar_Impl::Create(PP_Instance instance,
                                        bool vertical) {
   scoped_refptr<PPB_Scrollbar_Impl> scrollbar(
       new PPB_Scrollbar_Impl(instance));
   scrollbar->Init(vertical);
   return scrollbar->GetReference();
 }
 
 PPB_Scrollbar_Impl::PPB_Scrollbar_Impl(PP_Instance instance)
     : PPB_Widget_Impl(instance),
-      ALLOW_THIS_IN_INITIALIZER_LIST(weak_ptr_factory_(this)) {
+      weak_ptr_factory_(this) {
 }
 
 PPB_Scrollbar_Impl::~PPB_Scrollbar_Impl() {
 }
 
 void PPB_Scrollbar_Impl::Init(bool vertical) {
   PluginInstance* plugin_instance = ResourceHelper::GetPluginInstance(this);
   if (!plugin_instance)
     return;
   scrollbar_.reset(WebPluginScrollbar::createForPlugin(
@@ skipping 181 matching lines @@
   pp_rect.point.x = dirty_.x();
   pp_rect.point.y = dirty_.y();
   pp_rect.size.width = dirty_.width();
   pp_rect.size.height = dirty_.height();
   dirty_ = gfx::Rect();
   Invalidate(&pp_rect);
 }
 
 }  // namespace ppapi
 }  // namespace webkit