Rename :ancestor to :host-context.

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

Index: LayoutTests/fast/dom/shadow/hostcontext-pseudo-class-expected.txt
diff --git a/LayoutTests/fast/dom/shadow/ancestor-pseudo-class-expected.txt b/LayoutTests/fast/dom/shadow/hostcontext-pseudo-class-expected.txt
similarity index 58%
rename from LayoutTests/fast/dom/shadow/ancestor-pseudo-class-expected.txt
rename to LayoutTests/fast/dom/shadow/hostcontext-pseudo-class-expected.txt
index c8bd5a79cfc9ca867516f416de05eb7346cb1b2b..60cf62fbb5a1eec43a146cf1f5a9d18ab723276c 100644
--- a/LayoutTests/fast/dom/shadow/ancestor-pseudo-class-expected.txt
+++ b/LayoutTests/fast/dom/shadow/hostcontext-pseudo-class-expected.txt
@@ -1,41 +1,41 @@
-Test whether :ancestor matches a shadow host correctly.
+Test whether :host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+:host-context 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.
+Compare :host-context with :host-context.
 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)"