[gtk] (10 commits) Non-fast-forward update to branch master.win32

[Chun-wei Fan <fanchunwei src gnome org>]

The branch 'master.win32' 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:

  6d33aab... gtk-demo: Disable `gui_app` attribute
  fe80619... gdksurface-win32.c: Fix Aerosnap computation
  7d9e265... testsuite: Setup tests env by platform
  c4a76b1... testsuite/gsk: Only run Broadway tests if enabled
  a7ae7c2... GDK-Win32: Move some functions around
  b75e59c... gdkvulkancontext-win32.c: Implement ->begin_frame()

Commits added to the branch:

  cb32084... docs: Introspect GtkFileChooserNative info (*)
  6ed1cd6... Merge branch 'filechoosernative-docs' into 'master' (*)
  83682d9... treeview: Don't react to clicks on cell editables (*)
  c77600f... Merge branch 'treeview-editing' into 'master' (*)
  a1d1fa2... gtk-demo: Disable `gui_app` attribute
  93d8c3f... gdksurface-win32.c: Fix Aerosnap computation
  89624c9... testsuite: Setup tests env by platform
  8330e1d... testsuite/gsk: Only run Broadway tests if enabled
  32265a5... GDK-Win32: Move some functions around
  1113608... gdkvulkancontext-win32.c: Implement ->begin_frame()

(*) This commit already existed in another branch; no separate mail sent