Cronet Fix Channel Write after Close when request is canceled after success.

net/BUILD.gn

Index: net/BUILD.gn
diff --git a/net/BUILD.gn b/net/BUILD.gn
index 73eb465851fa9ee85c17000848b843b0f5479119..c36ffae6db7f1a24bdb0c99d4b92720a6fc4dcb1 100644
--- a/net/BUILD.gn
+++ b/net/BUILD.gn
@@ -673,6 +673,8 @@ source_set("test_support") {
     "test/spawned_test_server/spawner_communicator.h",
     "test/url_request/url_request_failed_job.cc",
     "test/url_request/url_request_failed_job.h",
+    "test/url_request/url_request_mock_data_job.cc",
+    "test/url_request/url_request_mock_data_job.h",
     "test/url_request/url_request_mock_http_job.cc",
     "test/url_request/url_request_mock_http_job.h",
     "url_request/test_url_fetcher_factory.cc",