Convert enable_plugins to a buildflag header.

content/browser/loader/mime_sniffing_resource_handler.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 CONTENT_BROWSER_LOADER_MIME_SNIFFING_RESOURCE_HANDLER_H_
 #define CONTENT_BROWSER_LOADER_MIME_SNIFFING_RESOURCE_HANDLER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "content/browser/loader/layered_resource_handler.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/resource_controller.h"
 #include "content/public/common/request_context_type.h"
+#include "ppapi/features/features.h"
 
 namespace net {
 class URLRequest;
 }
 
 namespace content {
 class InterceptingResourceHandler;
 class PluginService;
 class ResourceDispatcherHostImpl;
 struct WebPluginInfo;
@@ skipping 116 matching lines @@
   bool CheckResponseIsNotProvisional();
 
   bool MustDownload();
 
   // Called on the IO thread once the list of plugins has been loaded.
   void OnPluginsLoaded(const std::vector<WebPluginInfo>& plugins);
 
   State state_;
 
   ResourceDispatcherHostImpl* host_;
-#if defined(ENABLE_PLUGINS)
+#if BUILDFLAG(ENABLE_PLUGINS)
   PluginService* plugin_service_;
 #endif
 
   bool must_download_;
   bool must_download_is_set_;
 
   // Used to buffer the reponse received until replay.
   scoped_refptr<ResourceResponse> response_;
   scoped_refptr<net::IOBuffer> read_buffer_;
   int read_buffer_size_;
   int bytes_read_;
 
   // The InterceptingResourceHandler that will perform ResourceHandler swap if
   // needed.
   InterceptingResourceHandler* intercepting_handler_;
 
   RequestContextType request_context_type_;
 
   base::WeakPtrFactory<MimeSniffingResourceHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MimeSniffingResourceHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_MIME_SNIFFING_RESOURCE_HANDLER_H_