Revert "Fix a ton of compiler warnings."

chrome/browser/net/url_fetcher.h

Index: chrome/browser/net/url_fetcher.h
diff --git a/chrome/browser/net/url_fetcher.h b/chrome/browser/net/url_fetcher.h
index 28ec2c5bc09ea50d897dfb05d0d2e2cef1f49d65..6b1c87c0c5eb8773656eec0ffaa0e75210780b16 100644
--- a/chrome/browser/net/url_fetcher.h
+++ b/chrome/browser/net/url_fetcher.h
@@ -75,8 +75,6 @@ class URLFetcher {
                                     int response_code,
                                     const ResponseCookies& cookies,
                                     const std::string& data) = 0;
-   protected:
-    ~Delegate() {}
   };
 
   // URLFetcher::Create uses the currently registered Factory to create the
@@ -87,8 +85,6 @@ class URLFetcher {
                                          const GURL& url,
                                          RequestType request_type,
                                          Delegate* d) = 0;
-   protected:
-    ~Factory() {}
   };
 
   // |url| is the URL to send the request to.