BrowserPlugin/WebView - Move plugin lifetime to DOM

Source/core/frame/RemoteFrame.cpp

 // 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 "config.h"
 #include "core/frame/RemoteFrame.h"
 
 #include "core/frame/RemoteFrameView.h"
-#include "core/rendering/RenderPart.h"
+#include "core/html/HTMLFrameOwnerElement.h"
 
 namespace WebCore {
 
 inline RemoteFrame::RemoteFrame(FrameHost* host, HTMLFrameOwnerElement* ownerElement)
     : Frame(host, ownerElement)
 {
 }
 
 PassRefPtr<RemoteFrame> RemoteFrame::create(FrameHost* host, HTMLFrameOwnerElement* ownerElement)
 {
     RefPtr<RemoteFrame> frame = adoptRef(new RemoteFrame(host, ownerElement));
     return frame.release();
 }
 
 RemoteFrame::~RemoteFrame()
 {
     setView(nullptr);
 }
 
 void RemoteFrame::setView(PassRefPtr<RemoteFrameView> view)
 {
     m_view = view;
 }
 
 void RemoteFrame::createView()
 {
     RefPtr<RemoteFrameView> view = RemoteFrameView::create(this);
     setView(view);
 
-    if (ownerRenderer())
-        ownerRenderer()->setWidget(view);
+    if (ownerRenderer()) {
+        ASSERT(ownerElement());
+        ownerElement()->setWidget(view);
+    }
 }
 
 } // namespace WebCore