tree 3383902ddf7c3848420a91a58a0ce7054aedea08
parent c8bf89ddf03e36f610049c0c1b8796b3713e4355
author Yan, Shaobo <shaobo.yan@intel.com> 1545304864 +0000
committer Commit Bot service account <commit-bot@chromium.org> 1545304864 +0000

Guard header files in utils with #ifdef and #endif

Some header files in utils missing #ifdef and #endif and this caused including
header files multiple times.

This patch fix it.

BUG=dawn:72

Change-Id: Ib28b1a1cef91e49a5754ec6b3d66327076070d99
Reviewed-on: https://dawn-review.googlesource.com/c/3461
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>