Lazily load API schemas from resource files and convert all APIs to features

chrome/renderer/extensions/api_definitions_natives.cc

 // Copyright (c) 2012 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 "chrome/renderer/extensions/api_definitions_natives.h"
 
 #include <algorithm>
 
-#include "chrome/common/extensions/api/extension_api.h"
+#include "chrome/common/extensions/features/base_feature_provider.h"
 
 namespace {
 const char kInvalidExtensionNamespace[] = "Invalid extension namespace";
 }
 
 namespace extensions {
 
 ApiDefinitionsNatives::ApiDefinitionsNatives(Dispatcher* dispatcher,
                                              ChromeV8Context* context)
     : ChromeV8Extension(dispatcher, context->v8_context()),
       context_(context) {
   RouteFunction("GetExtensionAPIDefinitions",
                 base::Bind(&ApiDefinitionsNatives::GetExtensionAPIDefinitions,
                            base::Unretained(this)));
 }
 
 v8::Handle<v8::Value> ApiDefinitionsNatives::GetExtensionAPIDefinitions(
     const v8::Arguments& args) {
   return dispatcher()->v8_schema_registry()->GetSchemas(
-      ExtensionAPI::GetSharedInstance()->GetAllAPINames());
+      BaseFeatureProvider::GetByName("api")->GetAllTopLevelFeatureNames());
 }
 
 }  // namespace extensions