[Cronet] Set up HttpServerPropertiesManager

net/url_request/url_request_context_builder.cc

Index: net/url_request/url_request_context_builder.cc
diff --git a/net/url_request/url_request_context_builder.cc b/net/url_request/url_request_context_builder.cc
index fafc21115fd02c357486b0bd28c11538296c922e..db2ddb96676b610d907704ec079c463b9b3d45d2 100644
--- a/net/url_request/url_request_context_builder.cc
+++ b/net/url_request/url_request_context_builder.cc
@@ -332,8 +332,13 @@ URLRequestContext* URLRequestContextBuilder::Build() {
                                            false)));
   }
 
-  storage->set_http_server_properties(
-      scoped_ptr<HttpServerProperties>(new HttpServerPropertiesImpl()));
+  if (http_server_properties_) {
+    context->set_http_server_properties(http_server_properties_);
+  } else {
+    storage->set_http_server_properties(
+        scoped_ptr<HttpServerProperties>(new HttpServerPropertiesImpl()));
+  }
+
   storage->set_cert_verifier(CertVerifier::CreateDefault());
 
   if (throttling_enabled_)