Move the logic to retrieve the WebPluginContainer to LocalFrame and Node.

third_party/WebKit/public/web/WebNode.h

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 93 matching lines @@
 
   BLINK_EXPORT bool IsInsideFocusableElementOrARIAWidget() const;
   BLINK_EXPORT WebAXObject AccessibilityObject();
 
   template <typename T>
   T To();
   template <typename T>
   const T ToConst() const;
 
 #if BLINK_IMPLEMENTATION
-  BLINK_EXPORT static WebPluginContainer* PluginContainerFromNode(const Node*);
-
   BLINK_EXPORT WebNode(Node*);
   BLINK_EXPORT WebNode& operator=(Node*);
   BLINK_EXPORT operator Node*() const;
 
   template <typename T>
   T* Unwrap() {
     return static_cast<T*>(private_.Get());
   }
 
   template <typename T>
@@ skipping 38 matching lines @@
   return !(a == b);
 }
 
 inline bool operator<(const WebNode& a, const WebNode& b) {
   return a.LessThan(b);
 }
 
 }  // namespace blink
 
 #endif