D28674: WIP: Implement a updateXTime compatible with Xcb and XWayland

meven created this revision.
meven added reviewers: KWin, davidedmundson, zzag.
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meven requested review of this revision.

REVISION SUMMARY
  updateXTime now forces a property change and we use Application::updateX11Time to then catch the time of the corresponding response event.

TEST PLAN
  Works in a X session (Window resize and video works).
  
  Currently does not allow Xwayland windows to be resized properly.

REPOSITORY
  R108 KWin

BRANCH
  master

REVISION DETAIL
  https://phabricator.kde.org/D28674

AFFECTED FILES
  main.cpp
  main.h
  platform.cpp
  platform.h
  plugins/platforms/x11/standalone/x11_platform.cpp
  plugins/platforms/x11/standalone/x11_platform.h
  x11client.cpp

To: meven, #kwin, davidedmundson, zzag
Cc: kwin, Orage, cacarry, 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