Roll src/third_party/angle/ 5cf4d06cd..b1de5a7e6 (2 commits)

https://chromium.googlesource.com/angle/angle.git/+log/5cf4d06cd460..b1de5a7e633e

$ git log 5cf4d06cd..b1de5a7e6 --date=short --no-merges --format='%ad %ae %s'
2018-03-28 oetuaho Prevent stack overflow due to recursive swizzle of an l-value
2018-03-29 ynovikov Skip ComputeShaderTest.groupMemoryBarrierAndBarrierTest on NVIDIA D3D11

Created with:
  roll-dep src/third_party/angle


The AutoRoll server is located here: https://angle-chromium-roll.skia.org

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;master.tryserver.chromium.win:win_optional_gpu_tests_rel
TBR=lucferron@chromium.org

Change-Id: If5deef2744df6321ddf70ff8d3a5f6585a38260b
Reviewed-on: https://chromium-review.googlesource.com/987493Reviewed-by: angle-chromium-autoroll <angle-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: angle-chromium-autoroll <angle-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#547106}

DEPS

@@ -91,7 +91,7 @@ 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': '5cf4d06cd4604efaec242203b2b327e6daa607ee',
+  'angle_revision': 'b1de5a7e633ec9fa1ef8e8778def5069fe248c46',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling build tools
   # and whatever else without interference from each other.