Converts accNavigate over to the AXPlatformNode code.

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 18badaa519891f82ba60e0f12c1ea547437d071b..d1e33c778fa2ea373d63abbddb9fb5b47708c015 100644
--- a/ui/accessibility/platform/test_ax_node_wrapper.cc
+++ b/ui/accessibility/platform/test_ax_node_wrapper.cc
@@ -141,6 +141,10 @@ gfx::NativeViewAccessible TestAXNodeWrapper::GetFocus() {
   return nullptr;
 }
 
+AXPlatformNode* TestAXNodeWrapper::GetFromNodeID(int32_t id) {
+  return nullptr;
+}
+
 gfx::AcceleratedWidget
 TestAXNodeWrapper::GetTargetForNativeAccessibilityEvent() {
   return gfx::kNullAcceleratedWidget;