Removed "compositor" child window that was created by the GPU process.

content/browser/tab_contents/tab_contents.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 "content/browser/tab_contents/tab_contents.h"
 
 #include <cmath>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 2255 matching lines @@
 
 NavigationEntry*
 TabContents::GetLastCommittedNavigationEntryForRenderManager() {
   return controller_.GetLastCommittedEntry();
 }
 
 bool TabContents::CreateRenderViewForRenderManager(
     RenderViewHost* render_view_host) {
   RenderWidgetHostView* rwh_view = view_->CreateViewForWidget(render_view_host);
 
+  // Now that the RenderView has been created, we need to tell it its size.
+  rwh_view->SetSize(view_->GetContainerSize());
+
   if (!render_view_host->CreateRenderView(string16()))
     return false;
 
-  // Now that the RenderView has been created, we need to tell it its size.
-  rwh_view->SetSize(view_->GetContainerSize());
-
   UpdateMaxPageIDIfNecessary(render_view_host->site_instance(),
                              render_view_host);
   return true;
 }
 
 void TabContents::Observe(NotificationType type,
                           const NotificationSource& source,
                           const NotificationDetails& details) {
   switch (type.value) {
     case NotificationType::PREF_CHANGED: {
@@ skipping 106 matching lines @@
 
 void TabContents::CreateViewAndSetSizeForRVH(RenderViewHost* rvh) {
   RenderWidgetHostView* rwh_view = view()->CreateViewForWidget(rvh);
   rwh_view->SetSize(view()->GetContainerSize());
 }
 
 void TabContents::OnOnlineStateChanged(bool online) {
   render_view_host()->Send(new ViewMsg_NetworkStateChanged(
       render_view_host()->routing_id(), online));
 }