[Android] ThumbnailerManager: No need to get the string from resources more than once

[Edward Wang]

On 10/3/12, Ludovic Fauvet <git at videolan.org> wrote:
> vlc-ports/android | branch: master | Ludovic Fauvet <etix at videolan.org> |
> Wed Oct  3 12:58:25 2012 +0200| [74b767f6d0fdd4af9861323e87cddcb2049ca20a] |
> committer: Ludovic Fauvet
>
> ThumbnailerManager: No need to get the string from resources more than once
>
This is a good idea, caching a commonly used string. Might even speed
it up a little (e.g. 1 ms) :)