cherrypick Change-Id: If9ee878fcd7e2ef3161edf58dc3ac98ed9399ea5

ndk=true

ndk.win_download=android-ndk-r6-windows.zip

ndk.win_bytes=67642809

ndk.win_checksum=9c7d5ccc02151a3e5e950c70dc05ac6d

ndk.win_bytes=67670219

ndk.win_checksum=f496b48fffb6d341303de170a081b812

ndk.mac_download=android-ndk-r6-darwin-x86.tar.bz2

ndk.mac_bytes=52682746

ndk.mac_checksum=a154905e49a6246abd823b75b6eda738

ndk.mac_bytes=52798843

ndk.mac_checksum=65f2589ac1b08aabe3183f9ed1a8ce8e

ndk.linux_download=android-ndk-r6-linux-x86.tar.bz2

ndk.linux_bytes=46425290

ndk.linux_checksum=ff0a43085fe206696d5cdcef3f4f4637

ndk.linux_bytes=46532436

ndk.linux_checksum=309f35e49b64313cfb20ac428df4cec2

page.title=Android NDK

@jd:body