[gtk] (18 commits) Non-fast-forward update to branch wip/otte/color-profiles

[Benjamin Otte <otte src gnome org>]

The branch 'wip/otte/color-profiles' 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:

  5176e67... memorytexture: Add gdk_memory_texture_convert()
  c7f61da... gl: Move gdk_gl_context_upload_texture() into NGL
  2a64b3d... cairo: Add color profile get/set
  297ee8d... gdk: Rework gdk_pixbuf_get_from_texture()
  4e10f5f... broadway: Use gdk_texture_save_to_png_bytes()
  972e83d... gdk: Make gdk_texture_download_surface() take a target colo
  1282147... gdk: Add srgb_linear color profile
  c41f2a8... ngl: Avoid cairo in icon upload
  4302de0... memoryformat: Do some gdk_memory_convert() massaging
  56929cd... png: Do loader conversions in GDK
  1c93def... png: Add private formats for weird PNG stuff
  944b743... memoryformat: Optimize more
  a3e77e0... colorprofile: Implement a global transform cache
  a24a37e... png: Handle color profiles
  b3260f6... png: Refactor png saving
  cf39750... FIXME: Add crude color management impl for cairo
  e0e0c6d... FIXME: Add a crude way to color-correct GdkRGBAs
  02ef039... widget-factory: Add tests for loading color profiles

Commits added to the branch:

  4f8197a... memorytexture: Add gdk_memory_texture_convert()
  bd64088... gl: Move gdk_gl_context_upload_texture() into NGL
  6f85620... cairo: Add color profile get/set
  53dd150... gdk: Rework gdk_pixbuf_get_from_texture()
  ca7edb7... broadway: Use gdk_texture_save_to_png_bytes()
  9dcd4ee... gdk: Make gdk_texture_download_surface() take a target colo
  2f958e5... gdk: Add srgb_linear color profile
  4ef7111... ngl: Avoid cairo in icon upload
  7c85af2... memoryformat: Do some gdk_memory_convert() massaging
  24c19f3... png: Do loader conversions in GDK
  61f4740... png: Add private formats for weird PNG stuff
  17b22b6... memoryformat: Optimize more
  9ec2174... colorprofile: Implement a global transform cache
  8bd6c7a... png: Handle color profiles
  4861fef... png: Refactor png saving
  5b1c986... FIXME: Add crude color management impl for cairo
  e399ceb... FIXME: Add a crude way to color-correct GdkRGBAs
  0e19768... widget-factory: Add tests for loading color profiles