Bug 1121099. Make <basefont> be an HTMLElement to match my reading of the spec and Chrome. r=sicking

parser/htmlparser/nsHTMLTagList.h

@@ -46,7 +46,7 @@ HTML_HTMLELEMENT_TAG(aside)
 HTML_TAG(audio, Audio)
 HTML_HTMLELEMENT_TAG(b)
 HTML_TAG(base, Shared)
-HTML_TAG(basefont, Span)
+HTML_HTMLELEMENT_TAG(basefont)
 HTML_HTMLELEMENT_TAG(bdo)
 HTML_TAG(bgsound, Unknown)
 HTML_HTMLELEMENT_TAG(big)

testing/web-platform/meta/html/dom/interfaces.html.ini

@@ -744,12 +744,6 @@
   [Stringification of document.createElement("rb")]
     expected: FAIL
 
-  [HTMLUnknownElement must be primary interface of document.createElement("basefont")]
-    expected: FAIL
-
-  [Stringification of document.createElement("basefont")]
-    expected: FAIL
-
   [HTMLHtmlElement interface: existence and properties of interface object]
     expected: FAIL
 

testing/web-platform/meta/html/semantics/interfaces.html.ini

@@ -1,8 +1,5 @@
 [interfaces.html]
   type: testharness
-  [Interfaces for basefont]
-    expected: FAIL
-
   [Interfaces for image]
     expected: FAIL
 

testing/web-platform/tests/html/dom/interfaces.html

@@ -3239,6 +3239,7 @@ window.onload = function() {
 			'document.createElement("wbr")',
 			'document.createElement("summary")',
 			'document.createElement("acronym")',
+			'document.createElement("basefont")',
 		],
 		HTMLUnknownElement: [
 			'document.createElement("quasit")',
@@ -3248,7 +3249,6 @@ window.onload = function() {
 			'document.createElement("nextid")',
 			'document.createElement("rb")',
 			'document.createElement("spacer")',
-			'document.createElement("basefont")',
 			'document.createElement("directory")',
 			'document.createElement("mod")',
 		],

testing/web-platform/tests/html/semantics/interfaces.js

@@ -6,7 +6,7 @@ var elements = [
   ["audio", "Audio"],
   ["b", ""],
   ["base", "Base"],
-  ["basefont", "Unknown"],
+  ["basefont", ""],
   ["bdo", ""],
   ["bgsound", "Unknown"],
   ["big", ""],