Upgrade in-document custom elements when an element is defined.

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

Index: third_party/WebKit/Source/core/dom/custom/CustomElementDescriptorTest.cpp
diff --git a/third_party/WebKit/Source/core/dom/custom/CustomElementDescriptorTest.cpp b/third_party/WebKit/Source/core/dom/custom/CustomElementDescriptorTest.cpp
index d077ad4f8f3e50a6cb64d0a18b650a7367815d12..6113a519ce079ba81d9a1c764b34855b11c2a266 100644
--- a/third_party/WebKit/Source/core/dom/custom/CustomElementDescriptorTest.cpp
+++ b/third_party/WebKit/Source/core/dom/custom/CustomElementDescriptorTest.cpp
@@ -5,12 +5,15 @@
 #include "core/dom/custom/CustomElementDescriptor.h"
 
 #include "core/dom/custom/CustomElementDescriptorHash.h"
+#include "core/dom/custom/CustomElementTestHelpers.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "wtf/HashSet.h"
 #include "wtf/text/AtomicString.h"
 
 namespace blink {
 
+class Element;
+
 TEST(CustomElementDescriptorTest, equal)
 {
     CustomElementDescriptor myTypeExtension("my-button", "button");
@@ -40,4 +43,41 @@ TEST(CustomElementDescriptorTest, hashable)
         << "an unrelated descriptor should not be found in the hash set";
 }
 
+TEST(CustomElementDescriptorTest, matches_autonomous)
+{
+    CustomElementDescriptor descriptor("a-b", "a-b");
+    Element* element = CreateElement("a-b");
+    EXPECT_TRUE(descriptor.matches(*element));
+}
+
+TEST(CustomElementDescriptorTest,
+    matches_autonomous_shouldNotMatchCustomizedBuiltInElement)
+{
+    CustomElementDescriptor descriptor("a-b", "a-b");
+    Element* element = CreateElement("futuretag").withIsAttribute("a-b");
+    EXPECT_FALSE(descriptor.matches(*element));
+}
+
+TEST(CustomElementDescriptorTest, matches_customizedBuiltIn)
+{
+    CustomElementDescriptor descriptor("a-b", "button");
+    Element* element = CreateElement("button").withIsAttribute("a-b");
+    EXPECT_TRUE(descriptor.matches(*element));
+}
+
+TEST(CustomElementDescriptorTest,
+    matches_customizedBuiltIn_shouldNotMatchAutonomousElement)
+{
+    CustomElementDescriptor descriptor("a-b", "button");
+    Element* element = CreateElement("a-b");
+    EXPECT_FALSE(descriptor.matches(*element));
+}
+
+TEST(CustomElementDescriptorTest, matches_elementNotInHTMLNamespaceDoesNotMatch)
+{
+    CustomElementDescriptor descriptor("a-b", "a-b");
+    Element* element = CreateElement("a-b").inNamespace("data:text/plain,foo");
+    EXPECT_FALSE(descriptor.matches(*element));
+}
+
 } // namespace blink