Implement computedRole and computedName (behind a flag)

LayoutTests/accessibility/computed-name-expected.txt

Index: LayoutTests/accessibility/computed-name-expected.txt
diff --git a/LayoutTests/accessibility/computed-name-expected.txt b/LayoutTests/accessibility/computed-name-expected.txt
new file mode 100644
index 0000000000000000000000000000000000000000..6470cda2e9806754b4a7a054ea74ab714c9fdeb0
--- /dev/null
+++ b/LayoutTests/accessibility/computed-name-expected.txt
@@ -0,0 +1,120 @@
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS name is "alert name"
+PASS name is "alertdialog name"
+PASS name is "application name"
+PASS name is "article name"
+PASS implicitRoleElement.computedName is "implicit article name"
+PASS name is "banner name"
+PASS implicitRoleElement.computedName is "implicit banner name"
+PASS name is "button name"
+PASS implicitRoleElement.computedName is "implicit button name"
+PASS implicitRoleElement.computedName is "implicit button name"
+PASS implicitRoleElement.computedName is "implicit button name"
+PASS name is "button name"
+PASS implicitRoleElement.computedName is "implicit complementary name"
+PASS name is "complementary name"
+PASS name is "checkbox name"
+PASS implicitRoleElement.computedName is "implicit checkbox name"
+PASS name is "checkbox name"
+PASS name is "dialog name"
+PASS name is "directory name"
+PASS name is "grid name"
+PASS name is "row name"
+PASS name is "columnheader name"
+PASS name is "row name"
+PASS name is "gridcell name"
+PASS name is "combobox name"
+PASS name is "definition name"
+PASS name is "document name"
+PASS implicitRoleElement.computedName is "implicit document name"
+PASS name is "form name"
+PASS name is "group name"
+PASS implicitRoleElement.computedName is "implicit group name"
+PASS implicitRoleElement.computedName is "implicit group name"
+PASS name is "heading name"
+PASS implicitRoleElement.computedName is "implicit heading name"
+PASS implicitRoleElement.computedName is "implicit heading name"
+PASS implicitRoleElement.computedName is "implicit heading name"
+PASS implicitRoleElement.computedName is "implicit heading name"
+PASS implicitRoleElement.computedName is "implicit heading name"
+PASS implicitRoleElement.computedName is "implicit heading name"
+PASS name is "heading name"
+PASS name is "img name"
+PASS implicitRoleElement.computedName is "implicit img name"
+PASS name is "link name"
+PASS implicitRoleElement.computedName is "implicit link name"
+PASS implicitRoleElement.computedName is "implicit link name"
+PASS name is "link name"
+PASS name is "list name"
+PASS implicitRoleElement.computedName is "implicit list name"
+PASS implicitRoleElement.computedName is "implicit list name"
+PASS name is "listbox name"
+PASS implicitRoleElement.computedName is "implicit listbox name"
+PASS name is "log name"
+PASS name is "main name"
+PASS implicitRoleElement.computedName is "implicit main name"
+PASS name is "marquee name"
+PASS name is "math name"
+PASS name is "menu name"
+PASS name is "menubar name"
+PASS name is "menuitem name"
+PASS name is "menuitem name"
+PASS name is "menuitemcheckbox name"
+PASS name is "menuitemcheckbox name"
+PASS name is "menuitemradio name"
+PASS name is "menuitemradio name"
+PASS name is "navigation name"
+PASS implicitRoleElement.computedName is "implicit navigation name"
+PASS name is "note name"
+PASS name is "option name"
+PASS name is "option name"
+PASS name is "progressbar name"
+PASS implicitRoleElement.computedName is "implicit progressbar name"
+PASS name is "radio name"
+PASS implicitRoleElement.computedName is "implicit radio name"
+PASS name is "radio name"
+PASS name is "radiogroup name"
+PASS name is "region name"
+PASS implicitRoleElement.computedName is "implicit region name"
+PASS name is "scrollbar name"
+PASS name is "search name"
+PASS name is "separator name"
+PASS implicitRoleElement.computedName is "implicit separator name"
+PASS name is "slider name"
+PASS name is "spinbutton name"
+PASS name is "status name"
+PASS implicitRoleElement.computedName is "implicit status name"
+PASS name is "tablist name"
+PASS name is "tab name"
+PASS name is "tab name"
+PASS name is "tabpanel name"
+PASS name is "textbox name"
+PASS implicitRoleElement.computedName is "implicit textbox name"
+PASS implicitRoleElement.computedName is "implicit textbox name"
+PASS implicitRoleElement.computedName is "implicit textbox name"
+PASS implicitRoleElement.computedName is "implicit textbox name"
+PASS implicitRoleElement.computedName is "implicit textbox name"
+PASS implicitRoleElement.computedName is "implicit textbox name"
+PASS name is "timer name"
+PASS name is "toolbar name"
+PASS implicitRoleElement.computedName is "implicit toolbar name"
+PASS name is "tooltip name"
+PASS name is "tree name"
+PASS name is "treegrid name"
+PASS name is "treeitem name"
+PASS name is "link name"
+PASS svgElement.computedName is "Green rectangle"
+PASS svgAElement.computedName is "link name"
+PASS input.computedName is "Title0"
+PASS input.computedName is "Label1"
+PASS input.computedName is "AriaLabel2"
+PASS input.computedName is "LabelledBy3"
+PASS input.computedName is "Placeholder4"
+PASS input.computedName is "Title5"
+PASS input.computedName is "LabelledBy6"
+PASS successfullyParsed is true
+
+TEST COMPLETE
+