[gtk] (15 commits) Non-fast-forward update to branch matthiasc/color-profile-rebased

[Matthias Clasen <matthiasc src gnome org>]

The branch 'matthiasc/color-profile-rebased' 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:

  384823c... Split GdkColorProfile
  9ff7cf3... Revert "Split GdkColorProfile"
  6bdf724... gsk: Upload textures in linear sRGB
  1761ca3... gsk: Apply gamma to frames
  d78ce09... gsk: Linearize colors too
  662aaa2... gsk: Linearize gl textures
  c17d467... gsk: Use stem darkening for glyphs
  b427e86... cairo: Use stem darkening for glyphs
  291fdbf... gsk: Fix caching of textures
  4e9be85... gsk: Refactor a bit
  08d2bd7... gsk: Do texture conversions in shaders
  b797613... gsk: Support flipping gl textures
  2525874... API: Add a new constructor for GL textures
  88a1b58... gsk: Use GL texture information
  d01b9e1... glarea: Use the new GL texture constructor
  44cc77d... media: Use the new GL texture constructor

Commits added to the branch:

  0d1e9b4... gsk: Upload textures in linear sRGB
  24f43a8... gsk: Apply gamma to frames
  87734dc... gsk: Linearize colors too
  472b1b3... gsk: Linearize gl textures
  7e8af32... gsk: Use stem darkening for glyphs
  b1d5436... cairo: Use stem darkening for glyphs
  f6e466e... gsk: Fix caching of textures
  e96b737... gsk: Refactor a bit
  6f11b09... gsk: Do texture conversions in shaders
  6257381... gsk: Support flipping gl textures
  c99dacf... API: Add a new constructor for GL textures
  fe62e4a... gsk: Use GL texture information
  4a4d312... glarea: Use the new GL texture constructor
  12649fe... media: Use the new GL texture constructor
  a703616... gdk: Introduce GdkColor