D23067: Clean up usage of m_client

gladhorn created this revision.
gladhorn added a reviewer: KWin.
Herald added a project: KWin.
Herald added a subscriber: kwin.
gladhorn requested review of this revision.

REVISION SUMMARY
  We have a smart pointer, so be consistent in checking it.
  Since there is an operator->, make the code easier to read by removing countless .data()->.
  !m_client.isNull() can also be written as m_client since operator bool works.

REPOSITORY
  R108 KWin

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D23067

AFFECTED FILES
  useractions.cpp

To: gladhorn, #kwin
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