Handle the case where the v8 scriptable object has a property defined with value undefined.

ppapi/tests/blink_deprecated_test_plugin.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // A simple C++ Pepper plugin for exercising deprecated PPAPI interfaces in
 // Blink layout tests.
 //
 // Most layout tests should prefer to use the normal Blink test plugin, with the
 // MIME type application/x-blink-test-plugin. For layout tests that absolutely
 // need to test deprecated synchronous scripting interfaces, this plugin can be
@@ skipping 36 matching lines @@
                const std::vector<pp::Var>& args,
                pp::Var* exception) override {
     auto method = FindMethod(method_name);
     if (method != methods_.end()) {
       return method->second.Run(args, exception);
     }
 
     return ScriptableObject::Call(method_name, args, exception);
   }
 
+  bool HasProperty(const pp::Var& name, pp::Var* exception) {
+    if (name.AsString() == "testprop")
+      return true;
+    return false;
+  }
+
+  pp::Var GetProperty(const pp::Var& name, pp::Var* exception) {
+    if (!(name.AsString() == "testprop"))
+      *exception = pp::Var("Property does not exist on ScriptableObject");
+    return pp::Var();
+  }
+
  private:
   using MethodMap =
       std::map<std::string,
                base::Callback<pp::Var(const std::vector<pp::Var>&, pp::Var*)>>;
 
   MethodMap::iterator FindMethod(const pp::Var& name) {
     if (!name.is_string())
       return methods_.end();
     return methods_.find(name.AsString());
   }
@@ skipping 68 matching lines @@
 
 }  // namespace
 
 namespace pp {
 
 Module* CreateModule() {
   return new BlinkDeprecatedTestModule();
 }
 
 }  // namespace pp