Finish all string attributes for Accessibility Object Model Phase 1.

content/shell/test_runner/web_ax_object_proxy.h

Index: content/shell/test_runner/web_ax_object_proxy.h
diff --git a/content/shell/test_runner/web_ax_object_proxy.h b/content/shell/test_runner/web_ax_object_proxy.h
index 8a24cf1ee74948700bf58d6d240a75e44e8a45ed..ae0255a6e6dabf749eab2d6e030aa2e85919d53b 100644
--- a/content/shell/test_runner/web_ax_object_proxy.h
+++ b/content/shell/test_runner/web_ax_object_proxy.h
@@ -117,7 +117,15 @@ class WebAXObjectProxy : public gin::Wrappable<WebAXObjectProxy> {
   unsigned int ColorValue();
   std::string FontFamily();
   float FontSize();
+  std::string Autocomplete();
+  std::string Current();
+  std::string Invalid();
+  std::string KeyShortcuts();
+  std::string Live();
   std::string Orientation();
+  std::string Relevant();
+  std::string RoleDescription();
+  std::string Sort();
   int PosInSet();
   int SetSize();
   int ClickPointX();