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

third_party/WebKit/Source/web/WebNode.cpp

 /*
  * 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 37 matching lines @@
 #include "core/layout/LayoutObject.h"
 #include "core/layout/LayoutPart.h"
 #include "modules/accessibility/AXObjectImpl.h"
 #include "platform/wtf/PtrUtil.h"
 #include "public/platform/WebString.h"
 #include "public/web/WebAXObject.h"
 #include "public/web/WebDOMEvent.h"
 #include "public/web/WebDocument.h"
 #include "public/web/WebElement.h"
 #include "public/web/WebElementCollection.h"
-#include "public/web/WebPluginContainer.h"
 
 namespace blink {
 
 void WebNode::Reset() {
   private_.Reset();
 }
 
 void WebNode::Assign(const WebNode& other) {
   private_ = other.private_;
 }
@@ skipping 98 matching lines @@
   if (!private_->IsContainerNode())
     return WebElement();
   return ToContainerNode(private_.Get())
       ->QuerySelector(selector, IGNORE_EXCEPTION_FOR_TESTING);
 }
 
 bool WebNode::Focused() const {
   return private_->IsFocused();
 }
 
-WebPluginContainer* WebNode::PluginContainerFromNode(const Node* node) {
-  if (!node)
-    return nullptr;
-
-  if (!isHTMLObjectElement(node) && !isHTMLEmbedElement(node))
-    return nullptr;
-
-  LayoutObject* object = node->GetLayoutObject();
-  if (object && object->IsLayoutPart()) {
-    PluginView* plugin = ToLayoutPart(object)->Plugin();
-    if (plugin && plugin->IsPluginContainer())
-      return ToWebPluginContainerBase(plugin);
-  }
-
-  return nullptr;
-}
-
 WebPluginContainer* WebNode::PluginContainer() const {
-  return PluginContainerFromNode(ConstUnwrap<Node>());
+  return private_->GetWebPluginContainerBase();
 }
 
 WebAXObject WebNode::AccessibilityObject() {
   WebDocument web_document = GetDocument();
   const Document* doc = GetDocument().ConstUnwrap<Document>();
   AXObjectCacheBase* cache = ToAXObjectCacheBase(doc->ExistingAXObjectCache());
   Node* node = Unwrap<Node>();
   return cache ? WebAXObject(cache->Get(node)) : WebAXObject();
 }
 
 WebNode::WebNode(Node* node) : private_(node) {}
 
 WebNode& WebNode::operator=(Node* node) {
   private_ = node;
   return *this;
 }
 
 WebNode::operator Node*() const {
   return private_.Get();
 }
 
 }  // namespace blink