Clean up HttpStreamFactoryImpl::JobController when Impl::Jobs complete

net/http/http_basic_stream.cc

Index: net/http/http_basic_stream.cc
diff --git a/net/http/http_basic_stream.cc b/net/http/http_basic_stream.cc
index c805d7cf9892f4dbff4daf49cbdcb4525243cdb9..312b927851b3d9f1f6d122c1e5e5ed973f0d9810 100644
--- a/net/http/http_basic_stream.cc
+++ b/net/http/http_basic_stream.cc
@@ -49,7 +49,11 @@ int HttpBasicStream::ReadResponseBody(IOBuffer* buf,
 }
 
 void HttpBasicStream::Close(bool not_reusable) {
-  parser()->Close(not_reusable);
+  // parser() is null if |this| is created by an orphaned
+  // HttpStreamFactoryImpl::Job in which case InitializeStream() will not have
+  // been called.
+  if (parser())
+    parser()->Close(not_reusable);
 }
 
 HttpStream* HttpBasicStream::RenewStreamForAuth() {