Do cookie checks in NetworkDelegate instead of the URLRequest::Delegate.

chrome/browser/safe_browsing/download_protection_service.cc

Index: chrome/browser/safe_browsing/download_protection_service.cc
diff --git a/chrome/browser/safe_browsing/download_protection_service.cc b/chrome/browser/safe_browsing/download_protection_service.cc
index fcadc028e9143d36454f09849cbb0f6d5bd803e1..3ffeb353f53e5ef0011513010059e6291d57bfb6 100644
--- a/chrome/browser/safe_browsing/download_protection_service.cc
+++ b/chrome/browser/safe_browsing/download_protection_service.cc
@@ -21,6 +21,7 @@
 #include "chrome/common/safe_browsing/csd.pb.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/download_item.h"
+#include "content/public/common/content_url_request_user_data.h"
 #include "content/public/common/url_fetcher.h"
 #include "content/public/common/url_fetcher_delegate.h"
 #include "net/base/load_flags.h"
@@ -603,6 +604,9 @@ class DownloadProtectionService::CheckClientDownloadRequest
     fetcher_->SetLoadFlags(net::LOAD_DISABLE_CACHE);
     fetcher_->SetAutomaticallyRetryOn5xx(false);  // Don't retry on error.
     fetcher_->SetRequestContext(service_->request_context_getter_.get());
+    // TODO(jochen): Do cookie audit.
+    fetcher_->SetContentURLRequestUserData(
+        new content::ContentURLRequestUserData());
     fetcher_->SetUploadData("application/octet-stream", request_data);
     fetcher_->Start();
   }