Move and rename RenderPart to LayoutPart.

Source/core/frame/RemoteFrame.cpp

Index: Source/core/frame/RemoteFrame.cpp
diff --git a/Source/core/frame/RemoteFrame.cpp b/Source/core/frame/RemoteFrame.cpp
index 95e17a18fe2eefd957c360f59d779b5cd123fbc7..e129fd0007277fbc17cb3cdb517e36cfbc24e07a 100644
--- a/Source/core/frame/RemoteFrame.cpp
+++ b/Source/core/frame/RemoteFrame.cpp
@@ -13,7 +13,7 @@
 #include "core/frame/RemoteFrameView.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/layout/Layer.h"
-#include "core/rendering/RenderPart.h"
+#include "core/layout/LayoutPart.h"
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/weborigin/SecurityPolicy.h"
 #include "public/platform/WebLayer.h"
@@ -151,7 +151,7 @@ void RemoteFrame::setRemotePlatformLayer(WebLayer* layer)
 
     ASSERT(owner());
     toHTMLFrameOwnerElement(owner())->setNeedsCompositingUpdate();
-    if (RenderPart* renderer = ownerRenderer())
+    if (LayoutPart* renderer = ownerRenderer())
         renderer->layer()->updateSelfPaintingLayer();
 }