Forward BrowserAccessibility::accHitTest to AXPlatformNode.

content/browser/accessibility/browser_accessibility.cc

Index: content/browser/accessibility/browser_accessibility.cc
diff --git a/content/browser/accessibility/browser_accessibility.cc b/content/browser/accessibility/browser_accessibility.cc
index a90d107f32d0658e18bcae416008ec3b43ecbd8b..cf99c1c8f8c74d551b30848aabee2b2e8fbefc50 100644
--- a/content/browser/accessibility/browser_accessibility.cc
+++ b/content/browser/accessibility/browser_accessibility.cc
@@ -1130,8 +1130,11 @@ gfx::Rect BrowserAccessibility::GetScreenBoundsRect() const {
 }
 
 gfx::NativeViewAccessible BrowserAccessibility::HitTestSync(int x, int y) {
-  NOTREACHED();
-  return nullptr;
+  auto* accessible = manager_->CachingAsyncHitTest(gfx::Point(x, y));
+  if (!accessible)
+    return nullptr;
+
+  return accessible->GetNativeViewAccessible();
 }
 
 gfx::NativeViewAccessible BrowserAccessibility::GetFocus() {