Remove support for pseudo classes in <content select>.

LayoutTests/fast/dom/shadow/content-selector-query-expected.txt

Index: LayoutTests/fast/dom/shadow/content-selector-query-expected.txt
diff --git a/LayoutTests/fast/dom/shadow/content-selector-query-expected.txt b/LayoutTests/fast/dom/shadow/content-selector-query-expected.txt
index 482e4f60d1808d1f52129902ba3ca2a485293c14..87b56aa7579152f5926a3e8b109092b84be2a146 100644
--- a/LayoutTests/fast/dom/shadow/content-selector-query-expected.txt
+++ b/LayoutTests/fast/dom/shadow/content-selector-query-expected.txt
@@ -174,168 +174,6 @@ div:not(div div:hover)
 PASS internals.isValidContentSelect(content) is false
 div div:not(:hover)
 PASS internals.isValidContentSelect(content) is false
-null
-PASS internals.isValidContentSelect(content) is true
-
-PASS internals.isValidContentSelect(content) is true
-ns|div
-PASS internals.isValidContentSelect(content) is true
-*|div
-PASS internals.isValidContentSelect(content) is true
-|div
-PASS internals.isValidContentSelect(content) is true
-div
-PASS internals.isValidContentSelect(content) is true
-ns|*
-PASS internals.isValidContentSelect(content) is true
-*|*
-PASS internals.isValidContentSelect(content) is true
-|*
-PASS internals.isValidContentSelect(content) is true
-*
-PASS internals.isValidContentSelect(content) is true
-.elem
-PASS internals.isValidContentSelect(content) is true
-p.elem
-PASS internals.isValidContentSelect(content) is true
-foo.elem
-PASS internals.isValidContentSelect(content) is true
-*.right
-PASS internals.isValidContentSelect(content) is true
-#elem
-PASS internals.isValidContentSelect(content) is true
-p#elem
-PASS internals.isValidContentSelect(content) is true
-foo#elem
-PASS internals.isValidContentSelect(content) is true
-*#something
-PASS internals.isValidContentSelect(content) is true
-div[title]
-PASS internals.isValidContentSelect(content) is true
-div[class="example"]
-PASS internals.isValidContentSelect(content) is true
-div[hello="Cleveland"][goodbye="Columbus"]
-PASS internals.isValidContentSelect(content) is true
-div[rel~="copyright"]
-PASS internals.isValidContentSelect(content) is true
-div[href="http://www.example.com/"]
-PASS internals.isValidContentSelect(content) is true
-div[hreflang|="en"]
-PASS internals.isValidContentSelect(content) is true
-div[character=romeo]
-PASS internals.isValidContentSelect(content) is true
-div, div
-PASS internals.isValidContentSelect(content) is true
- div,      div     
-PASS internals.isValidContentSelect(content) is true
-div:not(div)
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-undefined
-PASS internals.isValidContentSelect(content) is true
-div div
-PASS internals.isValidContentSelect(content) is false
-div > div
-PASS internals.isValidContentSelect(content) is false
-div + div
-PASS internals.isValidContentSelect(content) is false
-div ~ div
-PASS internals.isValidContentSelect(content) is false
-div:root
-PASS internals.isValidContentSelect(content) is false
-div:lang(en)
-PASS internals.isValidContentSelect(content) is false
-div::before
-PASS internals.isValidContentSelect(content) is false
-div::after
-PASS internals.isValidContentSelect(content) is false
-div::first-line
-PASS internals.isValidContentSelect(content) is false
-div::first-letter
-PASS internals.isValidContentSelect(content) is false
-div:active
-PASS internals.isValidContentSelect(content) is false
-div:hover
-PASS internals.isValidContentSelect(content) is false
-div:focus
-PASS internals.isValidContentSelect(content) is false
-div div:not(div)
-PASS internals.isValidContentSelect(content) is false
-div:not(div) div
-PASS internals.isValidContentSelect(content) is false
-div span div
-PASS internals.isValidContentSelect(content) is false
-div < div
-PASS internals.isValidContentSelect(content) is false
-div - dvi
-PASS internals.isValidContentSelect(content) is false
-< div
-PASS internals.isValidContentSelect(content) is false
-+div
-PASS internals.isValidContentSelect(content) is false
-~div
-PASS internals.isValidContentSelect(content) is false
-div:!
-PASS internals.isValidContentSelect(content) is false
-!:!
-PASS internals.isValidContentSelect(content) is false
-div::!
-PASS internals.isValidContentSelect(content) is false
-div::first_of_type
-PASS internals.isValidContentSelect(content) is false
-pe;ro
-PASS internals.isValidContentSelect(content) is false
-@screen
-PASS internals.isValidContentSelect(content) is false
-@import "style.css"
-PASS internals.isValidContentSelect(content) is false
-div :first-of-type
-PASS internals.isValidContentSelect(content) is false
-div::first-of-type
-PASS internals.isValidContentSelect(content) is false
- div, ,div
-PASS internals.isValidContentSelect(content) is false
-div ''
-PASS internals.isValidContentSelect(content) is false
 PASS successfullyParsed is true
 
 TEST COMPLETE