Change <menuitem> parsing rules to match spec

third_party/WebKit/Source/core/html/HTMLElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLElement.cpp b/third_party/WebKit/Source/core/html/HTMLElement.cpp
index 07da4944594042a3b1ce781fe8e9053a02b39fa3..9808d052dfb2b62ac927f1fd4c252820a49e5ca0 100644
--- a/third_party/WebKit/Source/core/html/HTMLElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLElement.cpp
@@ -144,9 +144,8 @@ bool HTMLElement::ShouldSerializeEndTag() const {
       HasTagName(bgsoundTag) || HasTagName(brTag) || HasTagName(colTag) ||
       HasTagName(embedTag) || HasTagName(frameTag) || HasTagName(hrTag) ||
       HasTagName(imgTag) || HasTagName(inputTag) || HasTagName(keygenTag) ||
-      HasTagName(linkTag) || HasTagName(menuitemTag) || HasTagName(metaTag) ||
-      HasTagName(paramTag) || HasTagName(sourceTag) || HasTagName(trackTag) ||
-      HasTagName(wbrTag))
+      HasTagName(linkTag) || HasTagName(metaTag) || HasTagName(paramTag) ||
+      HasTagName(sourceTag) || HasTagName(trackTag) || HasTagName(wbrTag))
     return false;
   return true;
 }