[DevTools] Move inspector-protocol/accessibility tests to new harness

third_party/WebKit/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodes-expected.txt

-Non-hidden div for comparison
-non-hidden treeitem
-hidden non-treeitem
- Buttons are leaf nodes
-Descendant of aria-hidden node
-List item also presentational
-Div in list isn't presentational
-Content within label refers to label container       inert button
-button in inert subtree
+
 
 WebArea
   tree
     *Ignored
 {
   "nodeId": "<string>",
   "ignored": true,
   "ignoredReasons": [
     {
       "name": "ancestorDisallowsChild",
@@ skipping 162 matching lines @@
   GenericContainer
   tree
   img
   button "Buttons are leaf nodes"
   text "List item also presentational"
   *GenericContainer
     text "Div in list isn't presentational"
   checkbox "Content within label refers to label container"
   GenericContainer
   combobox
-  GenericContainer
 {
   "nodeId": "<string>",
   "ignored": false,
   "role": {
     "type": "internalRole",
     "value": "GenericContainer"
   },
   "name": {
     "type": "computedString",
     "value": "",
@@ skipping 167 matching lines @@
   GenericContainer
   tree
   img
   button "Buttons are leaf nodes"
   text "List item also presentational"
   GenericContainer
   checkbox "Content within label refers to label container"
   GenericContainer
   *combobox
     MenuListPopup
-  GenericContainer
 {
   "nodeId": "<string>",
   "ignored": false,
   "role": {
     "type": "role",
     "value": "combobox"
   },
   "name": {
     "type": "computedString",
     "value": "",
@@ skipping 117 matching lines @@
       }
     }
   ],
   "role": {
     "type": "internalRole",
     "value": "Ignored"
   },
   "domNode": "button"
 }