Make use of new AX name calc in Chromium.

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   
 #_1: {
@@ skipping 56 matching lines @@
         {
           "name": "selected",
           "value": {
             "type": "boolean",
             "value": false
           }
         }
       ],
       "name": {
         "type": "computedString",
-        "value": "non-hidden treeitem",
+        "value": "",
         "sources": [
           {
             "type": "relatedElement",
             "attribute": "aria-labelledby"
           },
           {
             "type": "attribute",
             "attribute": "aria-label"
           },
           {
-            "type": "contents",
-            "value": {
-              "type": "string",
-              "value": "non-hidden treeitem"
-            }
-          },
-          {
             "type": "attribute",
-            "attribute": "title",
-            "superseded": true
+            "attribute": "title"
           }
         ]
       }
     }
   }
 }
 #_3: {
   "id": "<int>",
   "result": {
     "accessibilityNode": {
@@ skipping 346 matching lines @@
           "value": {
             "type": "boolean",
             "value": true
           }
         }
       ]
     }
   }
 }