Implement Node.isConnected

third_party/WebKit/Source/core/dom/Node.cpp

Index: third_party/WebKit/Source/core/dom/Node.cpp
diff --git a/third_party/WebKit/Source/core/dom/Node.cpp b/third_party/WebKit/Source/core/dom/Node.cpp
index da9b660fe040cfcefff918acd9093e59c4e0e16d..9a040e14fcf6e91b80c0cdcb6aaf51de0e161dcd 100644
--- a/third_party/WebKit/Source/core/dom/Node.cpp
+++ b/third_party/WebKit/Source/core/dom/Node.cpp
@@ -783,6 +783,11 @@ unsigned Node::nodeIndex() const
     return count;
 }
 
+bool Node::isConnected() const

[hayato, 2016/04/04 05:32:52]

I think we can use Node::inDocument() for Node.isConnected.

However, could you rename Node::inDocument() to Node::nShadowIncludingDocument()
in another CL?

See https://dom.spec.whatwg.org/#in-a-shadow-including-document

Unfortunately, the current Node::inDocument does mean "in a shadow including
document", I think.
It does not mean "In a document" in the spec.
https://dom.spec.whatwg.org/#in-a-document

That's confusing.

[yuzuchan, 2016/04/04 07:09:30]

Acknowledged.
I will start another CL to rename inDocument soon. :) 

+{
+    return isInShadowTree() ? shadowHost()->treeRoot().isSameNode(ownerDocument()) : treeRoot().isSameNode(ownerDocument());
+}
+
 NodeListsNodeData* Node::nodeLists()
 {
     return hasRareData() ? rareData()->nodeLists() : nullptr;