Roll src/third_party/dawn 2b9d702c09f1..74ec15010f8a (1 commits)

https://dawn.googlesource.com/dawn.git/+log/2b9d702c09f1..74ec15010f8a


git log 2b9d702c09f1..74ec15010f8a --date=short --no-merges --format='%ad %ae %s'
2019-01-03 yunchao.he@intel.com Assigning nullptr to descriptor's nextInChain in C++ is unneeded


Created with:
  gclient setdep -r src/third_party/dawn@74ec15010f8a

The AutoRoll server is located here: https://autoroll.skia.org/r/dawn-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

CQ_INCLUDE_TRYBOTS=luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
TBR=cwallez@chromium.org

Change-Id: I2b192885a4b5d54aed96278aa502473f06c3e808
Reviewed-on: https://chromium-review.googlesource.com/c/1394201Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#619691}

DEPS

@@ -245,7 +245,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.
-  'dawn_revision': '2b9d702c09f19966bdc07758893976e90f8be7cf',
+  'dawn_revision': '74ec15010f8a3cc14854ceba15b7fe0b78f3a0b1',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling feed
   # and whatever else without interference from each other.