Rename :ancestor to :host-context.

LayoutTests/fast/dom/shadow/ancestor-pseudo-class-expected.txt

Index: LayoutTests/fast/dom/shadow/ancestor-pseudo-class-expected.txt
diff --git a/LayoutTests/fast/dom/shadow/ancestor-pseudo-class-expected.txt b/LayoutTests/fast/dom/shadow/ancestor-pseudo-class-expected.txt
deleted file mode 100644
index c8bd5a79cfc9ca867516f416de05eb7346cb1b2b..0000000000000000000000000000000000000000
--- a/LayoutTests/fast/dom/shadow/ancestor-pseudo-class-expected.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-Test whether :ancestor matches a shadow host correctly.
-
-On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
-
-
-:ancestor out of shadow tree should not match any shadow hosts.
-PASS backgroundColorOf('host') is "rgba(0, 0, 0, 0)"
-:ancestor with * should not match any shadow hosts.
-PASS backgroundColorOf('host') is "rgba(0, 0, 0, 0)"
-:ancestor with tag selector should not match any shadow hosts.
-PASS backgroundColorOf('host') is "rgba(0, 0, 0, 0)"
-:ancestor with class selector should not match any shadow hosts.
-PASS backgroundColorOf('host') is "rgba(0, 0, 0, 0)"
-:ancestor with id selector should not match any shadow hosts.
-PASS backgroundColorOf('host') is "rgba(0, 0, 0, 0)"
-:ancestor with attribute selector should not match any shadow hosts.
-PASS backgroundColorOf('host') is "rgba(0, 0, 0, 0)"
-:ancestor in a shadow tree should match its shadow host.
-PASS backgroundColorOf('host') is "rgb(0, 128, 0)"
-:ancestor with :host in a shadow tree should match its shadow host.
-PASS backgroundColorOf('host') is "rgb(0, 128, 0)"
-:ancestor takes simple selectors and matches when one of the simple selectors matches.
-PASS backgroundColorOf('host') is "rgb(0, 128, 0)"
-:ancestor matches a shadow host in just a nested shadow tree, not all enclosing shadow trees.
-PASS backgroundColorOf('host1') is "rgba(0, 0, 0, 0)"
-PASS backgroundColorOf('host1/host2') is "rgb(0, 128, 0)"
-:ancestor matches based on a composed tree.
-PASS backgroundColorOf('host/target') is "rgb(0, 128, 0)"
-:ancestor matches based on a composed tree when having multiple shadow roots.
-PASS backgroundColorOf('host/targetA') is "rgba(0, 0, 0, 0)"
-PASS backgroundColorOf('host/targetB') is "rgb(0, 128, 0)"
-PASS backgroundColorOf('host/targetC') is "rgb(0, 128, 0)"
-:ancestor is updated when its matched ancestor changes className or id.
-PASS backgroundColorOf('host') is "rgb(0, 128, 0)"
-PASS backgroundColorOf('host') is "rgba(0, 0, 0, 0)"
-PASS backgroundColorOf('host') is "rgb(0, 128, 0)"
-PASS backgroundColorOf('host') is "rgba(0, 0, 0, 0)"
-Compare :ancestor with :ancestor.
-PASS backgroundColorOf('host') is "rgb(0, 128, 0)"
-PASS backgroundColorOf('host') is "rgb(255, 0, 0)"
-PASS backgroundColorOf('host/target') is "rgb(0, 128, 0)"
-PASS backgroundColorOf('host/target') is "rgb(0, 128, 0)"
-PASS backgroundColorOf('host/target') is "rgb(0, 128, 0)"
-PASS successfullyParsed is true
-
-TEST COMPLETE
-