Support Document constructor.

third_party/WebKit/Source/core/dom/Document.h

Index: third_party/WebKit/Source/core/dom/Document.h
diff --git a/third_party/WebKit/Source/core/dom/Document.h b/third_party/WebKit/Source/core/dom/Document.h
index 0f79aedd84747debbd272ade4b870f59ec6b91a2..dc63840be58212f3f3458a0dc965a5c2f1b24986 100644
--- a/third_party/WebKit/Source/core/dom/Document.h
+++ b/third_party/WebKit/Source/core/dom/Document.h
@@ -261,6 +261,7 @@ class CORE_EXPORT Document : public ContainerNode,
   static Document* Create(const DocumentInit& initializer = DocumentInit()) {
     return new Document(initializer);
   }
+  static Document* Create(const Document&);

[dominicc (has gone to gerrit), 2017/05/17 05:50:33]

Maybe give this a more detailed name, or at least a comment? What is the other
document?

[tkent, 2017/05/17 08:42:18]

It seems binding generator doesn't have a capability to change constructor
function names.  I'll add a comment.

   ~Document() override;
 
   MediaQueryMatcher& GetMediaQueryMatcher();