am be8da57a: am 5977f7d5: am d23a8692: am 14e40f04: am fd117ff2: Doc change: zh-cn translation of Android L overviews. cherrypick from  I56d1ce58e10b83d10d0077cc9dfbeb04f090b861

* commit 'be8da57a33103f9257d1a23eee372a703d8c181a':
  Doc change: zh-cn translation of Android L overviews. cherrypick from  I56d1ce58e10b83d10d0077cc9dfbeb04f090b861