gpu: Add calling convention for win32

I'm in the process of making a command buffer gles2 dll that can be consumed
by skia.  Skia, on windows 32, uses __stdcall for it's gl functions, so to
expose the gl interface to skia, we need to be using the same calling
convention.

Angle and GL both use __stdcall on win32.

Review URL: https://codereview.chromium.org/1260253003

Cr-Commit-Position: refs/heads/master@{#341953}


CrOS-Libchrome-Original-Commit: 0f8de4a5c189bf0bde032657d3d715bae46def2f
1 file changed
tree: 818f460e04e4ccf3e47be238c29099df7dec8d4a
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/