Roll src/third_party/angle e4458b7bb63a..f39b4f0280ef (2 commits)

https://chromium.googlesource.com/angle/angle.git/+log/e4458b7bb63a..f39b4f0280ef


git log e4458b7bb63a..f39b4f0280ef --date=short --no-merges --format='%ad %ae %s'
2019-04-09 timvp@google.com Vulkan Android: Remove workaround to clamp the point size
2019-04-09 spang@chromium.org Fix leak of MemoryObjectManager from context state


Created with:
  gclient setdep -r src/third_party/angle@f39b4f0280ef

The AutoRoll server is located here: https://autoroll.skia.org/r/angle-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:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel

BUG=chromium:951049
TBR=ynovikov@chromium.org

Change-Id: I57f789b8617e6a671d8f5a6bf31e9ee05033bc5c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1560402Reviewed-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@{#649334}

DEPS

@@ -141,7 +141,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.
-  'angle_revision': 'e4458b7bb63a94149ef04a6d00391bb549945cee',
+  'angle_revision': 'f39b4f0280ef8dafa7df18c6f0e93e2573e4bf9d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.