am 36f97dd6: Fixed assets - Make the background of popup key a full transparent color - Updated the background mdpi asset of keyboard

Merge commit '36f97dd6897b17841c1e6aab4612f3905185a90c' into gingerbread-plus-aosp

* commit '36f97dd6897b17841c1e6aab4612f3905185a90c':
  Fixed assets