ui/gl: Better error logging for GLImageNativePixmap

Use GLEnums::GetStringEnum() and gfx::BufferFormatToString() wherever
possible.

Change-Id: I1a0d57c3ac7242588b27ab8adf51cb6b34ee9aa9
Reviewed-on: https://chromium-review.googlesource.com/943936
Reviewed-by: David Reveman <reveman@chromium.org>
Reviewed-by: Daniele Castagna <dcastagna@chromium.org>
Commit-Queue: Kristian H. Kristensen <hoegsberg@chromium.org>
Cr-Commit-Position: refs/heads/master@{#540917}
1 file changed