Roll src/third_party/angle 5de69e91bd93..5546fb4fdd85 (4 commits)

https://chromium.googlesource.com/angle/angle.git/+log/5de69e91bd93..5546fb4fdd85


git log 5de69e91bd93..5546fb4fdd85 --date=short --no-merges --format='%ad %ae %s'
2019-02-28 tobine@google.com Vulkan:Adding custom pool allocator
2019-02-28 shrekshao@google.com Use string literal style for shader string in WebGLCompatibilityTest
2019-02-28 shrekshao@google.com add ext_float_blend feature and test
2019-02-28 ynovikov@chromium.org Require VK_EXT_queue_family_foreign for EGL_ANDROID_image_native_buffer support


Created with:
  gclient setdep -r src/third_party/angle@5546fb4fdd85

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

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

BUG=chromium:None,chromium:930993,chromium:857138
TBR=ynovikov@chromium.org

Change-Id: I84a19167fd94228ccf5aaa4b32ff738ee59c6219
Reviewed-on: https://chromium-review.googlesource.com/c/1496374Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#636639}

DEPS

@@ -139,7 +139,7 @@ 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': '5de69e91bd939f8c2acc3ccab095d770bf378481',
+  'angle_revision': '5546fb4fdd85dbef7b87b8f3727aaca00966d8de',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.