[Extensions Bindings] Add enum support

extensions/renderer/native_extension_bindings_system_unittest.cc

Index: extensions/renderer/native_extension_bindings_system_unittest.cc
diff --git a/extensions/renderer/native_extension_bindings_system_unittest.cc b/extensions/renderer/native_extension_bindings_system_unittest.cc
index 5045c8744ce793bf02ab76a20ffc8f9252a923a9..be585ca0e0bbe062e22aa866443ef42f076ffc42 100644
--- a/extensions/renderer/native_extension_bindings_system_unittest.cc
+++ b/extensions/renderer/native_extension_bindings_system_unittest.cc
@@ -148,10 +148,15 @@ TEST_F(NativeExtensionBindingsSystemUnittest, Basic) {
   ASSERT_FALSE(idle.IsEmpty());
   ASSERT_TRUE(idle->IsObject());
 
-  v8::Local<v8::Value> idle_query_state = GetPropertyFromObject(
-      v8::Local<v8::Object>::Cast(idle), context, "queryState");
+  v8::Local<v8::Object> idle_object = v8::Local<v8::Object>::Cast(idle);
+  v8::Local<v8::Value> idle_query_state =
+      GetPropertyFromObject(idle_object, context, "queryState");
   ASSERT_FALSE(idle_query_state.IsEmpty());
 
+  EXPECT_EQ(ReplaceSingleQuotes(
+                "{'ACTIVE':'active','IDLE':'idle','LOCKED':'locked'}"),
+            GetStringPropertyFromObject(idle_object, context, "IdleState"));
+
   {
     // Try calling the function with an invalid invocation - an error should be
     // thrown.