Roll third_party/externals/angle2/ 983c429fa..152152618 (7 commits)
Roll third_party/externals/angle2/ 983c429fa..152152618 (7 commits)

https://chromium.googlesource.com/angle/angle.git/+log/983c429fa3bf..152152618edf

$ git log 983c429fa..152152618 --date=short --no-merges --format='%ad %ae %s'
2018-04-11 courtneygo Enable unneeded-internal-declaration compiler warning
2018-04-13 thakis Add standalone angle bots to default cq set, remove upstream win-msvc-rel bot.
2018-04-13 jmadill Add "root" variable to DEPS.
2018-04-13 jmadill Move client attribs mask to front-end.
2018-04-13 cwallez Fix infra.cq to point to new Windows configs.
2018-04-13 ynovikov Suppress self-assign warning in angle_deqp_decpp and angle_deqp_libtester
2018-04-12 lucferron Vulkan: DrawElements with line loops client side memory support

Created with:
  roll-dep third_party/externals/angle2


The AutoRoll server is located here: https://angle-skia-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=skia.primary:Build-Debian9-Clang-x86_64-Release-ANGLE;skia.primary:Perf-Win10-Clang-AlphaR2-GPU-RadeonR9M470X-x86_64-Debug-All-ANGLE;skia.primary:Perf-Win10-Clang-NUC5i7RYH-GPU-IntelIris6100-x86_64-Debug-All-ANGLE;skia.primary:Perf-Win10-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-All-ANGLE;skia.primary:Perf-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Debug-All-ANGLE;skia.primary:Perf-Win10-Clang-ShuttleC-GPU-GTX960-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-AlphaR2-GPU-RadeonR9M470X-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-ShuttleC-GPU-GTX960-x86_64-Debug-All-ANGLE
TBR=borenet@google.com

Change-Id: I46497417f384488da41cfd7e3eb6b96356856f59
Reviewed-on: https://skia-review.googlesource.com/121375
Reviewed-by: <a917c5fd96a571cd0a42d0c6d58c2f2e9c11c47f@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: <a917c5fd96a571cd0a42d0c6d58c2f2e9c11c47f@skia-buildbots.google.com.iam.gserviceaccount.com>

aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,HalCanary/skia-hc,rubenvb/skia,rubenvb/skia,rubenvb/skia,HalCanary/skia-hc,google/skia,HalCanary/skia-hc,rubenvb/skia,Hikari-no-Tenshi/android_external_skia,google/skia,google/skia,rubenvb/skia,HalCanary/skia-hc,HalCanary/skia-hc,google/skia,Hikari-no-Tenshi/android_external_skia,rubenvb/skia,aosp-mirror/platform_external_skia,google/skia,HalCanary/skia-hc,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,rubenvb/skia,rubenvb/skia,google/skia,google/skia,HalCanary/skia-hc,rubenvb/skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,rubenvb/skia,google/skia,HalCanary/skia-hc,aosp-mirror/platform_external_skia,google/skia,Hikari-no-Tenshi/android_external_skia,aosp-mirror/platform_external_skia,aosp-mirror/platform_external_skia,Hikari-no-Tenshi/android_external_skia,google/skia,Hikari-no-Tenshi/android_external_skia,Hikari-no-Tenshi/android_external_skia,HalCanary/skia-hc