Convert tabs, windows, and extension APIs to feature system.

chrome/renderer/extensions/api_definitions_natives.cc

Index: chrome/renderer/extensions/api_definitions_natives.cc
diff --git a/chrome/renderer/extensions/api_definitions_natives.cc b/chrome/renderer/extensions/api_definitions_natives.cc
index 37621acda6a25193cf5156c401d6af66e482c4f8..2e02d6fd71e689c8ee01146957921cf2892f1c2a 100644
--- a/chrome/renderer/extensions/api_definitions_natives.cc
+++ b/chrome/renderer/extensions/api_definitions_natives.cc
@@ -15,6 +15,9 @@ ApiDefinitionsNatives::ApiDefinitionsNatives(
   RouteFunction("GetExtensionAPIDefinition",
                 base::Bind(&ApiDefinitionsNatives::GetExtensionAPIDefinition,
                            base::Unretained(this)));
+  RouteFunction("IsMemberAllowed",
+                base::Bind(&ApiDefinitionsNatives::IsMemberAllowed,
+                           base::Unretained(this)));
 }
 
 v8::Handle<v8::Value> ApiDefinitionsNatives::GetExtensionAPIDefinition(
@@ -46,4 +49,26 @@ v8::Handle<v8::Value> ApiDefinitionsNatives::GetExtensionAPIDefinition(
   return extension_dispatcher()->v8_schema_registry()->GetSchemas(*apis);
 }
 
+v8::Handle<v8::Value> ApiDefinitionsNatives::IsMemberAllowed(
+    const v8::Arguments& arguments) {
+  if (arguments.Length() < 1 || !arguments[0]->IsString()) {
+    LOG(ERROR) << "Invalid arguments";
+    return v8::Boolean::New(false);
+  }
+
+  ChromeV8Context* v8_context =
+      extension_dispatcher()->v8_context_set().GetCurrent();
+  CHECK(v8_context);
+
+  const Extension* extension = extension_dispatcher()->extensions()->GetByID(
+      v8_context->extension_id());
+
+  return v8::Boolean::New(
+      ExtensionAPI::GetSharedInstance()->IsAvailable(
+          *v8::String::AsciiValue(arguments[0]->ToString()),
+          extension,
+          v8_context->context_type()));
+
+}
+
 }  // namespace extensions