Fix LocalTestServer shutdown on Windows

net/test/spawned_test_server/local_test_server.cc

Index: net/test/spawned_test_server/local_test_server.cc
diff --git a/net/test/spawned_test_server/local_test_server.cc b/net/test/spawned_test_server/local_test_server.cc
index 6516136cea9d8e9bbd02fec2e8028ff0d3640f17..3dd6cc3221858616d43e0d07a6988dba95113890 100644
--- a/net/test/spawned_test_server/local_test_server.cc
+++ b/net/test/spawned_test_server/local_test_server.cc
@@ -125,7 +125,11 @@ bool LocalTestServer::Stop() {
     return true;
 
 #if defined(OS_WIN)
-  // This kills all the processes in the job object.
+  // Kill all the processes in the job object.
+  // Passing 0 exit code so that WaitForSingleProcess below doesn't fail.
+  if (job_handle_ && !base::KillJob(job_handle_.Get(), 0, true)) {
+    VLOG(1) << "Job kill failed";
+  }
   job_handle_.Close();
 #endif