Delete RenderWidgetHostViewChildFrame on Destroy().

content/browser/frame_host/render_widget_host_view_child_frame.cc

 // Copyright 2014 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/frame_host/render_widget_host_view_child_frame.h"
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
@@ skipping 277 matching lines @@
     SetCrossProcessFrameConnector(nullptr);
   }
 
   // We notify our observers about shutdown here since we are about to release
   // host_ and do not want any event calls coming from
   // RenderWidgetHostInputEventRouter afterwards.
   NotifyObserversAboutShutdown();
 
   host_->SetView(nullptr);
   host_ = nullptr;
-  base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, this);
+
+  delete this;
 }
 
 void RenderWidgetHostViewChildFrame::SetTooltipText(
     const base::string16& tooltip_text) {
   frame_connector_->GetRootRenderWidgetHostView()->SetTooltipText(tooltip_text);
 }
 
 RenderWidgetHostViewBase* RenderWidgetHostViewChildFrame::GetParentView() {
   if (!frame_connector_)
     return nullptr;
@@ skipping 438 matching lines @@
 
 bool RenderWidgetHostViewChildFrame::IsChildFrameForTesting() const {
   return true;
 }
 
 cc::SurfaceId RenderWidgetHostViewChildFrame::SurfaceIdForTesting() const {
   return cc::SurfaceId(frame_sink_id_, local_surface_id_);
 };
 
 }  // namespace content