Roll src/third_party/angle/ 225bfa950..38d92b59c (2 commits)

https://chromium.googlesource.com/angle/angle.git/+log/225bfa950a80..38d92b59c4b7

$ git log 225bfa950..38d92b59c --date=short --no-merges --format='%ad %ae %s'
2017-09-13 yizhou.jiang Workaround Intel driver bug on D3D when renderering with no render target
2017-09-27 jiajia.qin ES31: Add BUFFER_VARIABLE and SHADER_STORAGE_BLOCK program interfaces

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=master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
TBR=geofflang@chromium.org

Change-Id: I429f233ecb5251843573ce1d920949216059f08b
Reviewed-on: https://chromium-review.googlesource.com/764543
Reviewed-by: angle-deps-roller . <angle-deps-roller@chromium.org>
Commit-Queue: angle-deps-roller . <angle-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#515728}

DEPS

@@ -86,7 +86,7 @@ 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': '225bfa950a80f575e02347891565a056d756ee8e',
+  'angle_revision': '38d92b59c4b74c5c31dfaad4d23d04517ea2c570',
   # 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.