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

chrome/renderer/extensions/runtime_custom_bindings.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/runtime_custom_bindings.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_messages.h"
+#include "chrome/common/extensions/features/base_feature_provider.h"
 #include "chrome/common/extensions/manifest.h"
 #include "chrome/renderer/extensions/chrome_v8_context.h"
 #include "chrome/renderer/extensions/dispatcher.h"
 #include "content/public/renderer/render_view.h"
 #include "content/public/renderer/v8_value_converter.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebView.h"
 
 using content::V8ValueConverter;
@@ skipping 35 matching lines @@
   std::string channel_name = *v8::String::Utf8Value(args[1]->ToString());
   int port_id = -1;
   renderview->Send(new ExtensionHostMsg_OpenChannelToExtension(
       renderview->GetRoutingID(), info, channel_name, &port_id));
   return v8::Integer::New(port_id);
 }
 
 v8::Handle<v8::Value> RuntimeCustomBindings::OpenChannelToNativeApp(
     const v8::Arguments& args) {
   // Verify that the extension has permission to use native messaging.
-  if (!dispatcher()->CheckContextAccessToExtensionAPI(
-          "nativeMessaging", context())) {
+  if (!BaseFeatureProvider::GetByName("permission")->GetFeature(
+        "nativeMessaging")->IsAvailableToContext(
+            GetExtensionForRenderView(),
+            context()->context_type(),
+            context()->GetURL()).is_available()) {
     return v8::Undefined();
   }
 
   // Get the current RenderView so that we can send a routed IPC message from
   // the correct source.
   content::RenderView* renderview = GetRenderView();
   if (!renderview)
     return v8::Undefined();
 
   // The Javascript code should validate/fill the arguments.
@@ skipping 16 matching lines @@
 v8::Handle<v8::Value> RuntimeCustomBindings::GetManifest(
     const v8::Arguments& args) {
   CHECK(context()->extension());
 
   scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
   return converter->ToV8Value(context()->extension()->manifest()->value(),
                               context()->v8_context());
 }
 
 }  // namespace extensions