Roll src/third_party/angle/ 5242d5bf7..19fa1c6f8 (2 commits)

https://chromium.googlesource.com/angle/angle.git/+log/5242d5bf74d3..19fa1c6f8852

$ git log 5242d5bf7..19fa1c6f8 --date=short --no-merges --format='%ad %ae %s'
2018-03-08 jmadill Return an Error from Framebuffer::syncState.
2018-03-08 jmadill Vulkan: Use RenderTargetCache in FramebufferVk.

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=ynovikov@chromium.org

Change-Id: I00a6a1214c19650755b302ce9c307ccc8302a886
Reviewed-on: https://chromium-review.googlesource.com/955900
Commit-Queue: angle-chromium-autoroll <angle-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: angle-chromium-autoroll <angle-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#541894}

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': '5242d5bf74d38269605141c9f1cb23d51ab77e1e',
+  'angle_revision': '19fa1c6f8852c54caa76b955e2e1e8e663fa8897',
   # 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.