[Extensions Bindings] Add native declarativeContent verification

extensions/renderer/api_binding_hooks.cc

 // Copyright 2016 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.
 
 #include "extensions/renderer/api_binding_hooks.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/supports_user_data.h"
 #include "extensions/renderer/api_binding_hooks_delegate.h"
@@ skipping 315 matching lines @@
   return hook_interface->GetCustomCallback(name, context->GetIsolate());
 }
 
 bool APIBindingHooks::CreateCustomEvent(v8::Local<v8::Context> context,
                                         const std::string& event_name,
                                         v8::Local<v8::Value>* event_out) {
   return delegate_ &&
          delegate_->CreateCustomEvent(context, run_js_, event_name, event_out);
 }
 
+void APIBindingHooks::InitializeTemplate(
+    v8::Isolate* isolate,
+    v8::Local<v8::ObjectTemplate> object_template,
+    const APITypeReferenceMap& type_refs) {
+  if (delegate_)
+    delegate_->InitializeTemplate(isolate, object_template, type_refs);
+}
+
 void APIBindingHooks::SetDelegate(
     std::unique_ptr<APIBindingHooksDelegate> delegate) {
   delegate_ = std::move(delegate);
 }
 
 bool APIBindingHooks::UpdateArguments(
     v8::Local<v8::Function> function,
     v8::Local<v8::Context> context,
     std::vector<v8::Local<v8::Value>>* arguments) {
   v8::Global<v8::Value> global_result;
@@ skipping 12 matching lines @@
   if (result.IsEmpty() ||
       !gin::Converter<std::vector<v8::Local<v8::Value>>>::FromV8(
           context->GetIsolate(), result, &new_args)) {
     return false;
   }
   arguments->swap(new_args);
   return true;
 }
 
 }  // namespace extensions