Use content::Referrer to pass around referrers in the plugin code

content/renderer/npapi/webplugin_impl.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_RENDERER_NPAPI_WEBPLUGIN_IMPL_H_
 #define CONTENT_RENDERER_NPAPI_WEBPLUGIN_IMPL_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 137 matching lines @@
 
   enum RoutingStatus {
     ROUTED,
     NOT_ROUTED,
     INVALID_URL,
     GENERAL_FAILURE
   };
 
   // Determines the referrer value sent along with outgoing HTTP requests
   // issued by plugins.
-  enum Referrer {
+  enum ReferrerValue {
     PLUGIN_SRC,
     DOCUMENT_URL,
     NO_REFERRER
   };
 
   // Given a download request, check if we need to route the output to a frame.
   // Returns ROUTED if the load is done and routed to a frame, NOT_ROUTED or
   // corresponding error codes otherwise.
   RoutingStatus RouteToFrame(const char* url,
                              bool is_javascript_url,
                              bool popups_allowed,
                              const char* method,
                              const char* target,
                              const char* buf,
                              unsigned int len,
                              int notify_id,
-                             Referrer referrer_flag);
+                             ReferrerValue referrer_flag);
 
   // Returns the next avaiable resource id. Returns 0 if the operation fails.
   // It may fail if the page has already been closed.
   unsigned long GetNextResourceId();
 
   // Initiates HTTP GET/POST requests.
   // Returns true on success.
   bool InitiateHTTPRequest(unsigned long resource_id,
                            WebPluginResourceClient* client,
                            const GURL& url,
                            const char* method,
                            const char* buf,
                            int len,
                            const char* range_info,
-                           Referrer referrer_flag,
+                           ReferrerValue referrer_flag,
                            bool notify_redirects,
                            bool check_mixed_scripting);
 
   gfx::Rect GetWindowClipRect(const gfx::Rect& rect);
 
   // Sets the actual Widget for the plugin.
   void SetContainer(blink::WebPluginContainer* container);
 
   // Destroys the plugin instance.
   // The response_handle_to_ignore parameter if not NULL indicates the
@@ skipping 34 matching lines @@
   bool HandleHttpMultipartResponse(const blink::WebURLResponse& response,
                                    WebPluginResourceClient* client);
 
   void HandleURLRequestInternal(const char* url,
                                 const char* method,
                                 const char* target,
                                 const char* buf,
                                 unsigned int len,
                                 int notify_id,
                                 bool popups_allowed,
-                                Referrer referrer_flag,
+                                ReferrerValue referrer_flag,
                                 bool notify_redirects,
                                 bool check_mixed_scripting);
 
   // Tears down the existing plugin instance and creates a new plugin instance
   // to handle the response identified by the loader parameter.
   bool ReinitializePluginForResponse(blink::WebURLLoader* loader);
 
   // Delayed task for downloading the plugin source URL.
   void OnDownloadPluginSrcUrl();
 
   struct ClientInfo;
 
   // Helper functions
   WebPluginResourceClient* GetClientFromLoader(blink::WebURLLoader* loader);
   ClientInfo* GetClientInfoFromLoader(blink::WebURLLoader* loader);
 
   // Helper function to set the referrer on the request passed in.
-  void SetReferrer(blink::WebURLRequest* request, Referrer referrer_flag);
+  void SetReferrer(blink::WebURLRequest* request, ReferrerValue referrer_flag);
 
   // Check for invalid chars like @, ;, \ before the first / (in path).
-  bool IsValidUrl(const GURL& url, Referrer referrer_flag);
+  bool IsValidUrl(const GURL& url, ReferrerValue referrer_flag);
 
   std::vector<ClientInfo> clients_;
 
   bool windowless_;
   gfx::PluginWindowHandle window_;
 #if defined(OS_MACOSX)
   bool next_io_surface_allocated_;
   int32 next_io_surface_width_;
   int32 next_io_surface_height_;
   uint32 next_io_surface_id_;
@@ skipping 80 matching lines @@
   LoaderClient loader_client_;
 
   base::WeakPtrFactory<WebPluginImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebPluginImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_NPAPI_WEBPLUGIN_IMPL_H_