Roll src/third_party/angle/ 03bb2231a..d7b56642c (2 commits)

https://chromium.googlesource.com/angle/angle.git/+log/03bb2231a821..d7b56642c9f7

$ git log 03bb2231a..d7b56642c --date=short --no-merges --format='%ad %ae %s'
2018-04-27 oetuaho Fix blit rect calculations on D3D11 backend
2018-04-28 yizhou.jiang Disable avoid1BitAlphaTextureFormats workaround on Intel

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

Change-Id: I5aa458b63b2b5306eb85cee35bc146de19a45052
Reviewed-on: https://chromium-review.googlesource.com/1042862Reviewed-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@{#555977}

DEPS

@@ -108,7 +108,7 @@ 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': '03bb2231a821b2815a1ca472db47164af1350c6e',
+  'angle_revision': 'd7b56642c9f788f7485582f878bcb04dcc31d463',
   # 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.