D10105: baloo-widgets: Refactor filemetadataprovider for better readability

[Elvis Angelaccio]

elvisangelaccio edited the summary of this revision.

REPOSITORY
  R824 Baloo Widgets

REVISION DETAIL
  https://phabricator.kde.org/D10105

To: michaelh, elvisangelaccio, ngraham, vhanda, smithjd, #dolphin, #frameworks