[gtk] (16 commits) Non-fast-forward update to branch wip/otte/gl-hdr

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/gl-hdr' 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:

  eedd71b... win32: Remove unused variables
  e3ce8a8... pathbar: Use correct marshaler
  979d8a3... gdk: Make GDK_DEBUG GL backend selection global
  d9ced4e... widget-factory: Name the images pages
  d7997d8... surface: Use g_clear_thing()
  edfb0b0... gdk: Add a request_hdr argument to begin_frame()
  593335e... gdk: Add GDK_DEBUG=hdr
  da0f90b... egl: Move initialization code and port Wayland
  aa1bc0f... x11: Port to shared EGL code
  bcb7f3e... glcontext: The content cannot be the current context
  a39f74c... surface: Add a private struct
  8e3cf74... display: Get carried away by extension checker
  22df055... egl: Move EGLSurface handling to GdkSurface
  0d107d0... build: Add a HAVE_EGL define to config.h
  500a385... xxx surface
  54ec55c... xxx display

Commits added to the branch:

  6ec6bca... win32: Remove unused variables
  75370a2... pathbar: Use correct marshaler
  38461ee... gdk: Make GDK_DEBUG GL backend selection global
  9012a03... widget-factory: Name the images pages
  04da2ff... surface: Use g_clear_thing()
  b72b1a2... gdk: Add a request_hdr argument to begin_frame()
  203bafc... gdk: Add GDK_DEBUG=hdr
  423c98a... egl: Move initialization code and port Wayland
  533d630... x11: Port to shared EGL code
  87ade85... glcontext: The content cannot be the current context
  9c31c4d... surface: Add a private struct
  30b2a5f... display: Get carried away by extension checker
  b4d446c... egl: Move EGLSurface handling to GdkSurface
  915dea6... build: Add a HAVE_EGL define to config.h
  0706572... xxx surface
  aed162d... xxx display