am d23a8692: am 14e40f04: am fd117ff2: Doc change: zh-cn translation of Android L overviews. cherrypick from I56d1ce58e10b83d10d0077cc9dfbeb04f090b861
* commit 'd23a8692':
Doc change: zh-cn translation of Android L overviews. cherrypick from I56d1ce58e10b83d10d0077cc9dfbeb04f090b861