[mutter] (38 commits) Non-fast-forward update to branch wip/carlosg/xwayland-startup-side-channel

[Carlos Garnacho <carlosg src gnome org>]

The branch 'wip/carlosg/xwayland-startup-side-channel' 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:

  e7d414a... tests: Ensure MetaX11Display is initialized before running 
  2a6daca... tests: Set fatal log handler on clutter tests
  d3a3fbe... core: Make meta_display_init_x11() an async function
  aa84b6b... xwayland: Do not block on Xwayland initialization
  c7225ba... core: Use DISPLAY envvar to forward in the launch context
  8c2001a... wayland: Set up initialization X11 socket
  6228acc... wayland: Pass private X connection on GNOME_SETUP_DISPLAY
  f6ce0df... xwayland: Allow setting up maintenance processes

Commits added to the branch:

  136c095... cogl: Remove unused cogl.symbols (*)
  e0d2e10... cogl: Remove unused _cogl_framebuffer_try_creating_gl_fbo (*)
  99043e2... cogl: Mark _cogl_buffer_access_to_gl_enum static (*)
  600dd15... cogl: Remove unused p-axis texture wrap mode (*)
  c5a936e... cogl: Remove unused _cogl_framebuffer_{push,pop}_projection (*)
  f5e2310... cogl: Remove unused _cogl_framebuffer_set_clip_stack (*)
  795491c... cogl: Remove unused cogl_program_use and friends (*)
  985b3b3... cogl: Remove unused _cogl_pipeline_get_layers (*)
  640ad47... cogl: Inline _cogl_framebuffer_remove_all_dependencies into (*)
  c1bdaba... cogl: Inline cogl_use_program into its one caller (*)
  05301d2... clipboard-manager: Plug mimetypes list leak (*)
  8e6821b... x11-selection: Plug MetaSelectionSourceX11 leak (*)
  861e5ca... x11-selection: Plug potential GInputStream leak (*)
  c05019e... x11-selection: Don't store copies of strings that are not b (*)
  35316a0... selection: Unref selection owners on dispose (*)
  d699c80... display: Unref selection on shutdown (*)
  b41094e... x11-selection: Unref owners and cancellables on shutdown (*)
  e7928ce... selection: Fix task leak in error case of source_read_cb (*)
  98040e6... core: Fix task leak in meta_selection_source_memory_read_as (*)
  2212a44... clutter/actor: Fix GValue leak when overwriting transition  (*)
  ffad55c... wayland: Handle dragging from/dropping to v1 data device us (*)
  81de2c2... backends/x11: Fix use after free on device removal (*)
  2fbbf65... core: Demote image formats' priority from preservation in c (*)
  832c0fb... core: Define specific image formats to be stored in the cli (*)
  b91d66b... core: Extend list of image formats to be stored in the clip (*)
  aa0aa89... window: Ignore requests to be placed on non-existent worksp (*)
  9b0392e... backends/native: Emit signals for virtual devices (*)
  76240e2... background: Scale monitor_area after texture creation (*)
  06dae3a... wayland-pointer: Bail unconditionally if without native bac (*)
  c4f8b93... Bump version to 3.35.90 (*)
  4280297... tests: Ensure MetaX11Display is initialized before running 
  5727db7... tests: Set fatal log handler on clutter tests
  3836a63... core: Make meta_display_init_x11() an async function
  e4dbb5d... xwayland: Do not block on Xwayland initialization
  9455165... core: Use DISPLAY envvar to forward in the launch context
  0beeb1d... wayland: Set up initialization X11 socket
  2540946... wayland: Pass private X connection on GNOME_SETUP_DISPLAY
  4aa794d... xwayland: Allow setting up maintenance processes

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