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

chrome/renderer/extensions/chrome_v8_context.h

 // 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.
 
 #ifndef CHROME_RENDERER_EXTENSIONS_CHROME_V8_CONTEXT_H_
 #define CHROME_RENDERER_EXTENSIONS_CHROME_V8_CONTEXT_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 87 matching lines @@
   v8::Local<v8::Value> CallFunction(v8::Handle<v8::Function> function,
                                     int argc,
                                     v8::Handle<v8::Value> argv[]) const;
 
   // Fires the onunload event on the unload_event module.
   void DispatchOnUnloadEvent();
 
   // Returns the availability of the API |api_name|.
   Feature::Availability GetAvailability(const std::string& api_name);
 
-  // Returns whether the API |api_name| or any part of the API could be
+  // Returns whether the API |api| or any part of the API could be
   // available in this context without taking into account the context's
   // extension.
-  bool IsAnyFeatureAvailableToContext(const std::string& api_name);
+  bool IsAnyFeatureAvailableToContext(const extensions::Feature& api);
 
   // Returns a string description of the type of context this is.
   std::string GetContextTypeDescription();
 
   // RequestSender::Source implementation.
   virtual ChromeV8Context* GetContext() OVERRIDE;
   virtual void OnResponseReceived(const std::string& name,
                                   int request_id,
                                   bool success,
                                   const base::ListValue& response,
@@ skipping 28 matching lines @@
   PepperRequestProxy pepper_request_proxy_;
 
   v8::Isolate* isolate_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeV8Context);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_RENDERER_EXTENSIONS_CHROME_V8_CONTEXT_H_