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

third_party/WebKit/LayoutTests/inspector-protocol/accessibility/accessibility-ignoredNodes.js

+(async function(testRunner) {
+  let {page, session, dp} = await testRunner.startHTML(`
+    <div>Non-hidden div for comparison</div>
+      <div role='tree'>
+          <div role='treeitem'>non-hidden treeitem</div>
+          <div data-dump >hidden non-treeitem</div>
+      </div>
+      <div role='img'>
+          <svg data-dump>
+              <!-- Children of img role are presentational -->
+              <circle xmlns:svg='http://www.w3.org/2000/svg' cx='150px' cy='100px' r='50px' fill='#ff0000' stroke='#000000' stroke-width='5px'/>
+          </svg>
+      </div>
+      <button>
+          <span data-dump>Buttons are leaf nodes</span>
+      </button>
+      <div data-dump aria-hidden='true'>
+          <div data-dump>Descendant of aria-hidden node</div>
+      </div>
+      <ol role='none' data-dump><!-- list is presentational -->
+        <li data-dump>List item also presentational</li>
+        <div data-dump>Div in list isn't presentational</div>
+      </ol>
+
+      <label for='checkbox' data-dump><span data-dump>Content within label refers to label container</span></label>
+      <input type='checkbox' id='checkbox'>
+      <div style='display: none' data-dump>
+        Non-rendered div
+        <span data-dump>Span within non-rendered div</span>
+        <button aria-hidden='false'>aria-hidden false button</button>
+      </div>
+
+      <canvas style='height: 1px; width: 1px;' data-dump></canvas>
+
+      <canvas role='presentation' data-dump><div>Canvas fallback content</div></canvas>
+
+      <select data-dump>
+        <option data-dump>Options should be</option>
+        <option>sent down even though</option>
+        <option>they are grandchildren</option>
+      </select>
+
+      <button inert data-dump>inert button</button>
+      <div id='inert-root' inert>
+        <button data-dump>button in inert subtree</button>
+      </div>
+  `, '');
+
+  var dumpAccessibilityNodesBySelectorAndCompleteTest =
+      (await testRunner.loadScript('../resources/accessibility-dumpAccessibilityNodes.js'))(testRunner, session);
+
+  var msg = await dp.DOM.getDocument();
+  dumpAccessibilityNodesBySelectorAndCompleteTest('[data-dump]', true, msg);
+})