Roll ANGLE from 1496de2 to 6ef0387 (10 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/1496de215a39..6ef0387d581d

2020-06-25 [email protected] Vulkan: Fix mipmap generation discarding levels above max
2020-06-25 [email protected] Fix readBuffer validation
2020-06-24 [email protected] Vulkan: Batch vkUpdateDescriptorSets calls
2020-06-24 [email protected] Vulkan: Fix glBlitFramebuffer() for pre-rotation
2020-06-24 [email protected] Suppress TextureTest failure on NVIDIA Shield.
2020-06-24 [email protected] Roll glslang from 839704450200 to fbb9dc2cf1af (1 revision)
2020-06-24 [email protected] Roll SwiftShader from 9167e1e22a46 to eb0a25a189b7 (3 revisions)
2020-06-24 [email protected] Roll Vulkan-Loader from 7e8789fe571a to a173c025f8fe (1 revision)
2020-06-24 [email protected] Roll Vulkan-ValidationLayers from 76ddcca9f3a4 to 45c73d999ed8 (14 revisions)
2020-06-24 [email protected] Roll SPIRV-Tools from 36b5bb701da9 to 7a1af5878594 (4 revisions)

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 [email protected] 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/+doc/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: [email protected]
Test: Test: angle_deqp_gles3_tests --gtest_filter=dEQP.GLES3/functional_fbo_invalidate_\*Test: Test: angle_end2end_tests --gtest_filter=*EGLPreRotationLargeSurfaceTest.OrientedWindowWithBlitFramebuffer
Change-Id: I28aacf7f48178e7374dc2394f82b46af7f240032
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/298878
Reviewed-by: skia-autoroll <[email protected]>
Commit-Queue: skia-autoroll <[email protected]>

Author: skia-autoroll

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@1496de215a397d6223936810de4cbec5694cc49f",
+  "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@6ef0387d581d9178177ee125777d025b16dcee85",
   # 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@2a6cc4f8fb40beb27a3542528955df7790a42116",