Remove more non-aura windows code.

content/browser/web_contents/web_contents_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 "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 1504 matching lines @@
   ShowCreatedWidget(route_id, false, initial_pos);
 }
 
 void WebContentsImpl::ShowCreatedFullscreenWidget(int route_id) {
   ShowCreatedWidget(route_id, true, gfx::Rect());
 }
 
 void WebContentsImpl::ShowCreatedWidget(int route_id,
                                         bool is_fullscreen,
                                         const gfx::Rect& initial_pos) {
-  if (delegate_)
-    delegate_->RenderWidgetShowing();
-
   RenderWidgetHostViewPort* widget_host_view =
       RenderWidgetHostViewPort::FromRWHV(GetCreatedWidget(route_id));
   if (!widget_host_view)
     return;
   if (is_fullscreen) {
     DCHECK_EQ(MSG_ROUTING_NONE, fullscreen_widget_routing_id_);
     fullscreen_widget_routing_id_ = route_id;
     if (delegate_ && delegate_->EmbedsFullscreenWidget()) {
       widget_host_view->InitAsChild(GetRenderWidgetHostView()->GetNativeView());
       delegate_->ToggleFullscreenModeForTab(this, true);
@@ skipping 2304 matching lines @@
 }
 
 void WebContentsImpl::OnFrameRemoved(
     RenderViewHostImpl* render_view_host,
     int64 frame_id) {
    FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                      FrameDetached(render_view_host, frame_id));
 }
 
 }  // namespace content