Remove FrameViewBase as base class of RemoteFrameView.

third_party/WebKit/Source/core/html/PluginDocument.h

 /*
  * Copyright (C) 2006, 2008, 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 12 matching lines @@
  */
 
 #ifndef PluginDocument_h
 #define PluginDocument_h
 
 #include "core/CoreExport.h"
 #include "core/html/HTMLDocument.h"
 
 namespace blink {
 
-class Node;
+class HTMLPlugInElement;
 class PluginView;
 
 class CORE_EXPORT PluginDocument final : public HTMLDocument {
  public:
   static PluginDocument* Create(
       const DocumentInit& initializer = DocumentInit()) {
     return new PluginDocument(initializer);
   }
 
-  void SetPluginNode(Node* plugin_node) { plugin_node_ = plugin_node; }
+  void SetPluginNode(HTMLPlugInElement* plugin_node) {
+    plugin_node_ = plugin_node;
+  }
+  HTMLPlugInElement* PluginNode() { return plugin_node_; }
 
   PluginView* GetPluginView();
-  Node* PluginNode();
 
   void Shutdown() override;
 
   DECLARE_VIRTUAL_TRACE();
 
  private:
   explicit PluginDocument(const DocumentInit&);
 
   DocumentParser* CreateParser() override;
 
-  Member<Node> plugin_node_;
+  Member<HTMLPlugInElement> plugin_node_;

[joelhockey, 2017/05/01 23:04:35]

plugin_node_ is always HTMLPlugInElement

 };
 
 DEFINE_DOCUMENT_TYPE_CASTS(PluginDocument);
 
 }  // namespace blink
 
 #endif  // PluginDocument_h