Remove calls of PrerenderTracker::TryCancel and TryCancelOnIOThread in ChromeResourceDispatcherHost…

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h

Index: chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h
===================================================================
--- chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h	(revision 242921)
+++ chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h	(working copy)
@@ -67,11 +67,6 @@
       bool is_content_initiated,
       bool must_download,
       ScopedVector<content::ResourceThrottle>* throttles) OVERRIDE;
-  virtual bool AcceptSSLClientCertificateRequest(
-        net::URLRequest* request,
-        net::SSLCertRequestInfo* cert_request_info) OVERRIDE;
-  virtual bool AcceptAuthRequest(net::URLRequest* request,
-                                 net::AuthChallengeInfo* auth_info) OVERRIDE;
   virtual content::ResourceDispatcherHostLoginDelegate* CreateLoginDelegate(
       net::AuthChallengeInfo* auth_info, net::URLRequest* request) OVERRIDE;
   virtual bool HandleExternalProtocol(const GURL& url,