Merge "Fix for double header and footer on ndk download pages: b/27950742...

Merge "Fix for double header and footer on ndk download pages: b/27950742 https://android-dot-devsite.googleplex.com/ndk/downloads/index.html am: 01febb96 am: 9ba538ee am: 6e666024 am: bfe88888 am: af83fe3b" into nyc-mr1-dev-plus-aosp
am: 1fd769d5

* commit '1fd769d5':

Change-Id: Ibf180b51bf86156aa1e6455059127c66048c6e98