Rework the way Widget::Init works:

chrome/browser/ui/views/download/download_started_animation_win.cc

 // Copyright (c) 2011 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/download/download_started_animation.h"
 
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/common/notification_details.h"
 #include "content/common/notification_registrar.h"
 #include "content/common/notification_source.h"
@@ skipping 83 matching lines @@
       this,
       NotificationType::TAB_CONTENTS_HIDDEN,
       Source<TabContents>(tab_contents_));
   registrar_.Add(
       this,
       NotificationType::TAB_CONTENTS_DESTROYED,
       Source<TabContents>(tab_contents_));
 
   SetImage(kDownloadImage);
 
-  gfx::Rect rc(0, 0, 0, 0);
+  popup_ = views::Widget::CreateWidget();
+  popup_->SetOpacity(0x00);
+
   views::Widget::CreateParams params(views::Widget::CreateParams::TYPE_POPUP);
   params.transparent = true;
   params.accept_events = false;
-  popup_ = views::Widget::CreateWidget(params);
-  popup_->SetOpacity(0x00);
-  popup_->Init(tab_contents_->GetNativeView(), rc);
+  params.parent = tab_contents_->GetNativeView();
+  popup_->Init(params);
   popup_->SetContentsView(this);
   Reposition();
   popup_->Show();
 
   Start();
 }
 
 void DownloadStartedAnimationWin::Reposition() {
   if (!tab_contents_)
     return;
@@ skipping 51 matching lines @@
 }
 
 }  // namespace
 
 // static
 void DownloadStartedAnimation::Show(TabContents* tab_contents) {
   // The animation will delete itself when it's finished or when the tab
   // contents is hidden or destroyed.
   new DownloadStartedAnimationWin(tab_contents);
 }