[Android] Warn user when file deletion failed

[Geoffrey Métais]

vlc-android | branch: 2.5.x | Geoffrey Métais <geoffrey.metais at gmail.com> | Fri Jan  5 16:04:06 2018 +0100| [430cc0e8a64ac038647aa4c35b6f3b1370cc1973] | committer: Geoffrey Métais

Warn user when file deletion failed

> https://code.videolan.org/videolan/vlc-android/commit/430cc0e8a64ac038647aa4c35b6f3b1370cc1973
---

 vlc-android/res/values/strings.xml                 |  1 +
 .../src/org/videolan/vlc/gui/PlaylistActivity.java | 29 +++++++++++++---------
 .../vlc/gui/audio/AudioAlbumsSongsFragment.java    | 11 ++++----
 .../vlc/gui/audio/AudioBrowserFragment.java        | 19 +++++++-------
 .../vlc/gui/browser/BaseBrowserFragment.java       | 15 +++++------
 .../vlc/gui/browser/MediaBrowserFragment.java      | 26 ++++++++++++-------
 .../videolan/vlc/gui/video/VideoGridFragment.java  | 14 ++++++-----
 7 files changed, 65 insertions(+), 50 deletions(-)

Diff:   https://code.videolan.org/videolan/vlc-android/commit/430cc0e8a64ac038647aa4c35b6f3b1370cc1973