[DevTools] Accessibility pane: Sync highlight between a11y pane and DOM pane

third_party/WebKit/Source/devtools/front_end/accessibility/accessibilityNode.css

Index: third_party/WebKit/Source/devtools/front_end/accessibility/accessibilityNode.css
diff --git a/third_party/WebKit/Source/devtools/front_end/accessibility/accessibilityNode.css b/third_party/WebKit/Source/devtools/front_end/accessibility/accessibilityNode.css
index b70d60e7b9aba5811004623ccfef17fcc1ff4402..c75970bc96ede8b862ab219d65dd6c6ab1c7f20d 100644
--- a/third_party/WebKit/Source/devtools/front_end/accessibility/accessibilityNode.css
+++ b/third_party/WebKit/Source/devtools/front_end/accessibility/accessibilityNode.css
@@ -165,3 +165,11 @@ li .inspect-dom-node {
 .tree-outline:focus li.selected .inspect-dom-node {
     background-color: white;
 }
+
+.tree-outline li.hovered:not(.selected) .selection {
+    display: block;
+    left: 3px;
+    right: 3px;
+    background-color: rgba(56, 121, 217, 0.1);
+    border-radius: 5px;
+}