Add support for nginx spdy module
user
```ruby
#
# Cookbook Name:: nginx
# Recipe:: http_spdy_module
#
# Author:: Christoph Buente (<christoph@meinekleinefarm.org>)
#
# Copyright 2013, MeinekleineFarm.org
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

node.run_state['nginx_configure_flags'] =
  node.run_state['nginx_configure_flags'] | ["--with-http_spdy_module"]
```
assistant