Move and rename RenderPart to LayoutPart.

Source/web/WebNode.cpp

Index: Source/web/WebNode.cpp
diff --git a/Source/web/WebNode.cpp b/Source/web/WebNode.cpp
index 5e864fd0eca119844f2463e4e7c7bf6308fde0e6..c4ad8773536785ee64f445f2045de4a45a5aaa38 100644
--- a/Source/web/WebNode.cpp
+++ b/Source/web/WebNode.cpp
@@ -42,7 +42,7 @@
 #include "core/html/HTMLCollection.h"
 #include "core/html/HTMLElement.h"
 #include "core/layout/LayoutObject.h"
-#include "core/rendering/RenderPart.h"
+#include "core/layout/LayoutPart.h"
 #include "modules/accessibility/AXObject.h"
 #include "modules/accessibility/AXObjectCacheImpl.h"
 #include "platform/Widget.h"
@@ -232,8 +232,8 @@ WebPluginContainer* WebNode::pluginContainer() const
     const Node& coreNode = *constUnwrap<Node>();
     if (isHTMLObjectElement(coreNode) || isHTMLEmbedElement(coreNode)) {
         LayoutObject* object = coreNode.renderer();
-        if (object && object->isRenderPart()) {
-            Widget* widget = toRenderPart(object)->widget();
+        if (object && object->isLayoutPart()) {
+            Widget* widget = toLayoutPart(object)->widget();
             if (widget && widget->isPluginContainer())
                 return toWebPluginContainerImpl(widget);
         }