D27726: Port away from deprecated KIconLoader::IconSize

iasensio created this revision.
iasensio added reviewers: KWin, davidedmundson, broulik.
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REVISION SUMMARY
  Use `QStyle::pixelMetrics` instead

TEST PLAN
  No compiler warning
  Icon still happily bounces on application launch

REPOSITORY
  R108 KWin

BRANCH
  fix_deprecated/iconloader

REVISION DETAIL
  https://phabricator.kde.org/D27726

AFFECTED FILES
  effects/startupfeedback/startupfeedback.cpp

To: iasensio, #kwin, davidedmundson, broulik
Cc: kwin, Orage, LeGast00n, The-Feren-OS-Dev, cblack, jraleigh, zachus, fbampaloukas, GB_2, mkulinski, ragreen, jackyalcine, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, ahiemstra, mart