[Extensions Bindings] Add native declarativeContent verification

extensions/renderer/api_binding_hooks_test_delegate.h

 // Copyright 2017 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.
 
 #ifndef EXTENSIONS_RENDERER_API_BINDING_HOOKS_TEST_DELEGATE_H_
 #define EXTENSIONS_RENDERER_API_BINDING_HOOKS_TEST_DELEGATE_H_
 
 #include <map>
 #include <string>
 
@@ skipping 16 matching lines @@
       v8::Local<v8::Context>,
       const binding::RunJSFunctionSync& run_js,
       const std::string& event_name)>;
 
   using RequestHandler = base::Callback<APIBindingHooks::RequestResult(
       const APISignature*,
       v8::Local<v8::Context> context,
       std::vector<v8::Local<v8::Value>>*,
       const APITypeReferenceMap&)>;
 
+  using TemplateInitializer = base::Callback<void(v8::Isolate*,
+                                                  v8::Local<v8::ObjectTemplate>,
+                                                  const APITypeReferenceMap&)>;
+
   // Adds a custom |handler| for the method with the given |name|.
   void AddHandler(base::StringPiece name, const RequestHandler& handler);
 
   // Creates events with the given factory.
   void SetCustomEvent(const CustomEventFactory& custom_event);
 
+  void SetTemplateInitializer(const TemplateInitializer& initializer);
+
   // APIBindingHooksDelegate:
   bool CreateCustomEvent(v8::Local<v8::Context> context,
                          const binding::RunJSFunctionSync& run_js_sync,
                          const std::string& event_name,
                          v8::Local<v8::Value>* event_out) override;
   APIBindingHooks::RequestResult HandleRequest(
       const std::string& method_name,
       const APISignature* signature,
       v8::Local<v8::Context> context,
       std::vector<v8::Local<v8::Value>>* arguments,
       const APITypeReferenceMap& refs) override;
+  void InitializeTemplate(v8::Isolate* isolate,
+                          v8::Local<v8::ObjectTemplate> object_template,
+                          const APITypeReferenceMap& type_refs) override;
 
  private:
   std::map<std::string, RequestHandler> request_handlers_;
   CustomEventFactory custom_event_;
+  TemplateInitializer template_initializer_;
 
   DISALLOW_COPY_AND_ASSIGN(APIBindingHooksTestDelegate);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_API_BINDING_HOOKS_TEST_DELEGATE_H_