Count element name validity per DOM versus HTML parsing.

third_party/WebKit/Source/core/dom/custom/CustomElementTest.cpp

Index: third_party/WebKit/Source/core/dom/custom/CustomElementTest.cpp
diff --git a/third_party/WebKit/Source/core/dom/custom/CustomElementTest.cpp b/third_party/WebKit/Source/core/dom/custom/CustomElementTest.cpp
index a708592b20366830999d3ae3a77e14b30ca27418..dc7f3e358467522cfe6f905dbe8b4d861fa74ca1 100644
--- a/third_party/WebKit/Source/core/dom/custom/CustomElementTest.cpp
+++ b/third_party/WebKit/Source/core/dom/custom/CustomElementTest.cpp
@@ -189,13 +189,13 @@ TEST(CustomElementTest, StateByCreateElement) {
     EXPECT_EQ(data.state, element->GetCustomElementState()) << data.name;
     EXPECT_EQ(data.v0state, element->GetV0CustomElementState()) << data.name;
 
-    element = document.createElementNS(HTMLNames::xhtmlNamespaceURI, data.name,
-                                       ASSERT_NO_EXCEPTION);
+    element = document.createElementNS(nullptr, HTMLNames::xhtmlNamespaceURI,
+                                       data.name, ASSERT_NO_EXCEPTION);
     EXPECT_EQ(data.state, element->GetCustomElementState()) << data.name;
     EXPECT_EQ(data.v0state, element->GetV0CustomElementState()) << data.name;
 
-    element = document.createElementNS(SVGNames::svgNamespaceURI, data.name,
-                                       ASSERT_NO_EXCEPTION);
+    element = document.createElementNS(nullptr, SVGNames::svgNamespaceURI,
+                                       data.name, ASSERT_NO_EXCEPTION);
     EXPECT_EQ(CustomElementState::kUncustomized,
               element->GetCustomElementState())
         << data.name;