Download code cleanup:

chrome/browser/download/download_manager.h

Index: chrome/browser/download/download_manager.h
diff --git a/chrome/browser/download/download_manager.h b/chrome/browser/download/download_manager.h
index 704012d1cc972794ab9ed5409d9f7a5016b513f2..55bc52223a9c49fe6ad260621767d4241f04c6f1 100644
--- a/chrome/browser/download/download_manager.h
+++ b/chrome/browser/download/download_manager.h
@@ -245,11 +245,6 @@ class DownloadManager : public base::RefCountedThreadSafe<DownloadManager>,
   static void GenerateSafeFileName(const std::string& mime_type,
                                    FilePath* file_name);
 
-  // Runs the network cancel.  Must be called on the IO thread.
-  static void OnCancelDownloadRequest(ResourceDispatcherHost* rdh,
-                                      int render_process_id,
-                                      int request_id);
-
   // Create a file name based on the response from the server.
   static void GenerateFileName(const GURL& url,
                                const std::string& content_disposition,