Pass a Feature* to IsAnyFeatureAvailableToContext instead of a string name.

chrome/renderer/extensions/chrome_v8_context.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/chrome_v8_context.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string_split.h"
 #include "base/values.h"
@@ skipping 77 matching lines @@
   }
 
   v8::Handle<v8::Object> global = v8_context()->Global();
   if (!web_frame_)
     return handle_scope.Escape(function->Call(global, argc, argv));
   return handle_scope.Escape(
       v8::Local<v8::Value>(web_frame_->callFunctionEvenIfScriptDisabled(
           function, global, argc, argv)));
 }
 
-bool ChromeV8Context::IsAnyFeatureAvailableToContext(
-    const std::string& api_name) {
+bool ChromeV8Context::IsAnyFeatureAvailableToContext(const Feature& api) {
   return ExtensionAPI::GetSharedInstance()->IsAnyFeatureAvailableToContext(
-      api_name,
+      api,
       extension_.get(),
       context_type_,
       UserScriptSlave::GetDataSourceURLForFrame(web_frame_));
 }
 
 Feature::Availability ChromeV8Context::GetAvailability(
     const std::string& api_name) {
   return ExtensionAPI::GetSharedInstance()->IsAvailable(api_name,
                                                         extension_.get(),
                                                         context_type_,
@@ skipping 43 matching lines @@
   // string if a validation error has occured.
   if (DCHECK_IS_ON()) {
     if (!retval.IsEmpty() && !retval->IsUndefined()) {
       std::string error = *v8::String::Utf8Value(retval);
       DCHECK(false) << error;
     }
   }
 }
 
 }  // namespace extensions