Forward BrowserAccessibility get_accState to AXPlatformNode.

ui/accessibility/platform/test_ax_node_wrapper.cc

Index: ui/accessibility/platform/test_ax_node_wrapper.cc
diff --git a/ui/accessibility/platform/test_ax_node_wrapper.cc b/ui/accessibility/platform/test_ax_node_wrapper.cc
index 28cd793796caf71e1b30d7180746553a25dfd297..b7017491f318af5c86116e81f8a35ed9259fa544 100644
--- a/ui/accessibility/platform/test_ax_node_wrapper.cc
+++ b/ui/accessibility/platform/test_ax_node_wrapper.cc
@@ -123,6 +123,10 @@ bool TestAXNodeWrapper::AccessibilityPerformAction(
   return true;
 }
 
+bool TestAXNodeWrapper::IsHotTrackingOn() {
+  return false;
+}
+
 TestAXNodeWrapper::TestAXNodeWrapper(AXTree* tree, AXNode* node)
     : tree_(tree),
       node_(node),