Cleanup anonymous text objects that pass the document as a node.

third_party/WebKit/Source/core/layout/LayoutImage.cpp

Index: third_party/WebKit/Source/core/layout/LayoutImage.cpp
diff --git a/third_party/WebKit/Source/core/layout/LayoutImage.cpp b/third_party/WebKit/Source/core/layout/LayoutImage.cpp
index 4863e53ccec65efacdfb80b1cdd3a26fca523d70..9b95e882fecc18acf7a70542e6dead196aa7df4b 100644
--- a/third_party/WebKit/Source/core/layout/LayoutImage.cpp
+++ b/third_party/WebKit/Source/core/layout/LayoutImage.cpp
@@ -29,6 +29,7 @@
 #include "core/layout/LayoutImage.h"
 
 #include "core/HTMLNames.h"
+#include "core/dom/PseudoElement.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/UseCounter.h"
@@ -50,9 +51,9 @@ LayoutImage::LayoutImage(Element* element)
       m_isGeneratedContent(false),
       m_imageDevicePixelRatio(1.0f) {}
 
-LayoutImage* LayoutImage::createAnonymous(Document* document) {
+LayoutImage* LayoutImage::createAnonymous(PseudoElement& pseudo) {
   LayoutImage* image = new LayoutImage(nullptr);
-  image->setDocumentForAnonymous(document);
+  image->setDocumentForAnonymous(&pseudo.document());
   return image;
 }