D24455: [wayland] Implement window geometry more properly

zzag created this revision.
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REVISION SUMMARY
  So far the window geometry from xdg-shell wasn't implemented as it should
  be. A toplevel must have two geometries assigned to it - frame and buffer.
  The frame geometry describes bounds of the client excluding server-side
  and client-side drop-shadows. The buffer geometry specifies rectangle on
  the screen occupied by the main surface.
  
  State and geometry handling in XdgShellClient is still a bit broken. This
  change doesn't intend to fix that, it must be done in another patch asap.

TEST PLAN
  New tests pass.

REPOSITORY
  R108 KWin

REVISION DETAIL
  https://phabricator.kde.org/D24455

AFFECTED FILES
  autotests/integration/xdgshellclient_test.cpp
  deleted.cpp
  deleted.h
  internal_client.cpp
  internal_client.h
  toplevel.h
  unmanaged.cpp
  unmanaged.h
  x11client.cpp
  x11client.h
  xdgshellclient.cpp
  xdgshellclient.h

To: zzag, #kwin
Cc: kwin, LeGast00n, The-Feren-OS-Dev, sbergeron, jraleigh, fbampaloukas, GB_2, mkulinski, ragreen, jackyalcine, iodelay, crozbo, bwowk, ZrenBot, ngraham, alexeymin, himcesjf, lesliezhai, ali-mohamed, hardening, romangg, jensreuterberg, abetts, sebas, apol, mart