ResourceLoader: Fix a bunch of double-cancellation/double-error notification cases.

net/url_request/url_request_test_job.h

Index: net/url_request/url_request_test_job.h
diff --git a/net/url_request/url_request_test_job.h b/net/url_request/url_request_test_job.h
index 162d5094aa22b75f48c9c97e80c2a657c7f5cc8e..0f327236848a4dec9e0d2ccd2b675368968ac3c6 100644
--- a/net/url_request/url_request_test_job.h
+++ b/net/url_request/url_request_test_job.h
@@ -69,6 +69,7 @@ class NET_EXPORT_PRIVATE URLRequestTestJob : public URLRequestJob {
   static GURL test_url_3();
   static GURL test_url_4();
   static GURL test_url_error();
+  static GURL test_url_redirect_to_url_1();
   static GURL test_url_redirect_to_url_2();
 
   // The data that corresponds to each of the URLs above
@@ -83,6 +84,9 @@ class NET_EXPORT_PRIVATE URLRequestTestJob : public URLRequestJob {
   // The headers for a redirect response
   static std::string test_redirect_headers();
 
+  // The headers for a redirect response to the first test url.
+  static std::string test_redirect_to_url_1_headers();
+
   // The headers for a redirect response to the second test url.
   static std::string test_redirect_to_url_2_headers();