Roll third_party/externals/angle2 49ad8ea..33b58eb (24 commits)

https://chromium.googlesource.com/angle/angle.git/+log/49ad8eaae192..33b58ebb7ea8

git log 49ad8ea..33b58eb --date=short --first-parent --format='%ad %ae %s'
2020-04-18 timvp@google.com Vulkan: Give unsized arrays at least 1 entry
2020-04-17 jmadill@chromium.org Minor angle_end2end_tests cleanups.
2020-04-17 lehoangq@gmail.com Separate GLES1's state enum switch code from GLES2+
2020-04-17 cclao@google.com Vulkan: store ImageLayout in PackedAttachmentOpsDesc
2020-04-17 geofflang@google.com Remove more bad files before rolling into AOSP.
2020-04-17 geofflang@chromium.org Accept b/ for bug IDs in ANGLE CLs.
2020-04-17 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-loader/src 3682237cb326..50eaecd721a2 (1 commits)
2020-04-17 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-headers/src e01f13e..382bf3d (1 commits)
2020-04-17 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/SwiftShader 2430d665d3f2..d25ce8725224 (18 commits)
2020-04-17 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-tools/src 0d4857ea576a..454ab259c1b8 (1 commits)
2020-04-16 timvp@google.com Vulkan: Skip failing BlendIntegerTest tests
2020-04-16 jmadill@chromium.org Vulkan: Make staged clears store aspect mask.
2020-04-16 jmadill@chromium.org Vulkan: Forward RenderBuffer/Surface dirty messages.
2020-04-16 jmadill@chromium.org Pass binding enum to Framebuffer::syncState.
2020-04-16 geofflang@chromium.org Remove the merge command from roll_aosp.sh
2020-04-16 geofflang@chromium.org Remove some bad files when generating an ANGLE roll into Android
2020-04-16 jian.li@arm.com Vulkan: Fix transform feedback on AMD platform
2020-04-16 geofflang@chromium.org Remove --preserve-root from roll_aosp.sh
2020-04-16 geofflang@chromium.org Roll VulkanMemoryAllocator into Android
2020-04-16 tobine@google.com doc: Discuss manual roll in note on Vulkan-Headers repo
2020-04-16 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-tools/src 1be434141625..0d4857ea576a (1 commits)
2020-04-16 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/SwiftShader 81e08df29531..2430d665d3f2 (4 commits)
2020-04-16 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-loader/src 3f7e3cbf33a7..3682237cb326 (1 commits)
2020-04-16 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/spirv-tools/src c018fc6ae667..61b7de3c39f0 (2 commits)

Created with:
  gclient setdep -r third_party/externals/angle2@33b58ebb7ea8

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/angle-skia-autoroll
Please CC kjlubick@google.com,brianosman@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

Cq-Include-Trybots: skia/skia.primary:Build-Debian10-Clang-x86_64-Release-ANGLE;skia/skia.primary:Test-Win10-Clang-AlphaR2-GPU-RadeonR9M470X-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUC5i7RYH-GPU-IntelIris6100-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUC8i5BEK-GPU-IntelIris655-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Debug-All-ANGLE
Bug: None
Tbr: kjlubick@google.com,brianosman@google.com
Change-Id: Ib6d9ea78dd379e3cecebc2d5fda0a743221dc7b0
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/284405
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>

DEPS

@@ -7,7 +7,7 @@ vars = {
 deps = {
   "buildtools"                            : "https://chromium.googlesource.com/chromium/buildtools.git@505de88083136eefd056e5ee4ca0f01fe9b33de8",
   "common"                                : "https://skia.googlesource.com/common.git@9737551d7a52c3db3262db5856e6bcd62c462b92",
-  "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@49ad8eaae19253e3671a4f7fe6d142d08ac561d5",
+  "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@33b58ebb7ea83ef98c19d746aa44a846ac2f88fd",
   # Dawn requires jinja2 and markupsafe for the code generator, and glslang and shaderc for SPIRV compilation.
   # When the Dawn revision is updated these should be updated from the Dawn DEPS as well.
   "third_party/externals/dawn"            : "https://dawn.googlesource.com/dawn.git@53f694b34a8d584ce0b6bbc1903730f43bdb3538",