Get rid of lazy block.

Source/core/rendering/RenderObject.cpp

Index: Source/core/rendering/RenderObject.cpp
diff --git a/Source/core/rendering/RenderObject.cpp b/Source/core/rendering/RenderObject.cpp
index 1e4bafeefd26e7c2ed9d567bbe1cb546712e22eb..5ea8a96da266ba760acd7892b61ff75f26c5ab65 100644
--- a/Source/core/rendering/RenderObject.cpp
+++ b/Source/core/rendering/RenderObject.cpp
@@ -63,7 +63,6 @@
 #include "core/rendering/RenderLayer.h"
 #include "core/rendering/RenderLayerBacking.h"
 #include "core/rendering/RenderLayerCompositor.h"
-#include "core/rendering/RenderLazyBlock.h"
 #include "core/rendering/RenderListItem.h"
 #include "core/rendering/RenderMarquee.h"
 #include "core/rendering/RenderMultiColumnBlock.h"
@@ -213,8 +212,6 @@ RenderObject* RenderObject::createObject(Element* element, RenderStyle* style)
     case GRID:
     case INLINE_GRID:
         return new RenderGrid(element);
-    case LAZY_BLOCK:
-        return new RenderLazyBlock(element);
     }
 
     return 0;