pdf: Disable annotations test under debug builds

Time taken to load Web Assembly module causes the test to timeout.

Bug: 920684
Change-Id: I6d16428cf8716e8d4203523a55dcd2b2fbfe50b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1508015
Commit-Queue: dsinclair <dsinclair@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Auto-Submit: dstockwell <dstockwell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#638562}
1 file changed