CustomElements: adopt node

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

Index: third_party/WebKit/Source/core/dom/Element.cpp
diff --git a/third_party/WebKit/Source/core/dom/Element.cpp b/third_party/WebKit/Source/core/dom/Element.cpp
index 9cce24f6a0f58afd4ba5c6ec0704733e4ab0c8db..b48f3ee7fef0a20505367aa6c88401ee2b245e68 100644
--- a/third_party/WebKit/Source/core/dom/Element.cpp
+++ b/third_party/WebKit/Source/core/dom/Element.cpp
@@ -1941,15 +1941,31 @@ void Element::setNeedsCompositingUpdate()
     layoutObject->layer()->updateSelfPaintingLayer();
 }
 
-void Element::setCustomElementDefinition(V0CustomElementDefinition* definition)
+void Element::v0SetCustomElementDefinition(V0CustomElementDefinition* definition)
+{
+    if (!hasRareData() && !definition)
+        return;
+    DCHECK(!v0CustomElementDefinition());
+    ensureElementRareData().v0SetCustomElementDefinition(definition);
+}
+
+V0CustomElementDefinition* Element::v0CustomElementDefinition() const
+{
+    if (hasRareData())
+        return elementRareData()->v0CustomElementDefinition();
+    return nullptr;
+}
+
+void Element::setCustomElementDefinition(CustomElementDefinition* definition)

[davaajav, 2016/08/03 11:31:14]

I am not sure about not allowing setting the definition to nullptr. Is
"!definition" on the line 1961 not sufficient for checking whether definition is
set to nullptr? Please let me know if I am missing something.

 {
     if (!hasRareData() && !definition)
         return;
     DCHECK(!customElementDefinition());
     ensureElementRareData().setCustomElementDefinition(definition);
+    this->setCustomElementState(CustomElementState::Custom);
 }
 
-V0CustomElementDefinition* Element::customElementDefinition() const
+CustomElementDefinition* Element::customElementDefinition() const
 {
     if (hasRareData())
         return elementRareData()->customElementDefinition();