[gtk] (5 commits) Non-fast-forward update to branch offscreen-fixes

[Matthias Clasen <matthiasc src gnome org>]

The branch 'offscreen-fixes' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  b68faa1... testsuite: Rename next to ngl
  1668c7b... gsk: Add another test
  2e3f9ca... ngl: Add sonme comments
  966554d... ngl: Be explicit about offscreen clipping
  7c9f514... ngl: Fix offscreen rendering with transforms

Commits added to the branch:

  53e7593... ngl: Add sonme comments
  94f0a4e... ngl: Be explicit about offscreen clipping
  f9457af... ngl: Fix offscreen rendering with transforms
  6f62107... testsuite: Rename next to ngl
  5883f09... gsk: Add another test