Revert "Update to the latest versions of the GL and EGL headers." Linux compile failures to do gyp defines. This reverts commit 8bbeabc1795473f7b3141219be3970fea3b95a71. Change-Id: Icb31dd817414b3a9ab36e88cedab9c725af26b6b Reviewed-on: https://chromium-review.googlesource.com/299173 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>