The test suite occasionally runs into the following error:

[02036.794449][326733][326738][klog] INFO: [ERROR:src/ui/scenic/lib/scenic/session.cc(412)] Scenic session error (session_id: 1): Present2() called with no more present calls allowed. Terminating session.

This is actually a problem with the test harness as resetting the window
triggers a present with no fences and no OnFramePresentedCallback which
means there is no way to know if we will exceed the limit.

Add an OnFramePresentedCallback and count presents to stay under the
limit. This blocks if there's more than 2 in flight presents. A dedicated
async loop is used to avoid re-entering other code while waiting to
present (there is no such case in the ANGLE test suite currently, but
better safe than sorry).

Typically if we run the whole suite there will be a failure in the
middle, but re-trying the test that failed won't repro the issue. Add a
test that reliably exhausts the limit by calling resetNativeWindow() in a
loop.

Bug: angleproject:4360
Change-Id: I24eb01fd72fc0be57c36e49b5875023a80d6ab91
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2027934
Commit-Queue: Michael Spang <spang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Not all call sites were checking the return value of
MemoryBuffer::resize, mark the return value as NO_DISCARD and fix all
the warnings.

BUG=chromium:1030835

Change-Id: I762796e3d11efc131a814069d78a195b0d4c9f8f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2028151
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

We no longer need this workaround. Also mCommandPoolFreeList dead code.

Bug: angleproject:3508
Change-Id: Ib73ddd431eb1bf9a55c3421111af4df5976cc1fb
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2033485Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tobin Ehlis <tobine@google.com>
Commit-Queue: Tobin Ehlis <tobine@google.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-ValidationLayers.git/+log/8317b28e672a..bd4b3a888fca

git log 8317b28e672a..bd4b3a888fca --date=short --first-parent --format='%ad %ae %s'
2020-01-31 tobine@google.com build: Add NOMINMAX to Win ninja build
2020-01-30 mark@lunarg.com build: Move NOMINMAX definition from src to cmake file
2020-01-29 shannon@lunarg.com build: Update known-good for 1.2.132 header
2020-01-28 tony@lunarg.com layers: Fix call to overwrite_range
2020-01-28 s.fricke@samsung.com tests: Added test for VUID 02283
2020-01-28 s.fricke@samsung.com layers: Added VUID 02283
2020-01-28 tony@lunarg.com tests: Add test for 02829 and 02830
2020-01-28 tony@lunarg.com layers: Add validation for 02829 and 02830
2020-01-28 s.fricke@samsung.com layers: Removed redundant sType check
2020-01-28 s.fricke@samsung.com layers: Fix shader not looping correctly
2020-01-27 jeremy@lunarg.com tests: Test specialization constant size
2020-01-27 jeremy@lunarg.com layers: Fix specialization constant size
2020-01-27 tony@lunarg.com tests: Better checking for 1.2
2020-01-24 jzulauf@lunarg.com layers: Optimize descriptor allocation
2020-01-23 Andrew.Fobel@amd.com tests: Add tests for VK_EXT_separate_stencil_usage
2020-01-23 Andrew.Fobel@amd.com layers: Add VK_EXT_separate_stencil_usage support
2020-01-23 jzulauf@lunarg.com build: Update copyright header dates for modified
2020-01-23 jzulauf@lunarg.com layers: Bug fix for parallel iterator
2020-01-23 jzulauf@lunarg.com layers: performance tune ImageSubresourceLayoutMap
2020-01-23 jzulauf@lunarg.com layers: implement small range map and wrapper
2020-01-23 jzulauf@lunarg.com layers: Cleanups and fixes from further unit test
2020-01-23 jzulauf@lunarg.com layers: Fix ImageLayoutIntialState tracking
2020-01-23 jzulauf@lunarg.com layers: Add range map view to image_layout
2020-01-23 jzulauf@lunarg.com layers: Apply google style to new image layout impl
2020-01-23 jzulauf@lunarg.com layers: ImageLayout traversal to iterators
2020-01-23 jzulauf@lunarg.com layers: Refactor heavyweight ForRange/Iterator
2020-01-23 jzulauf@lunarg.com layers: New sparse map for image subresource data

Created with:
  gclient setdep -r third_party/vulkan-validation-layers/src@bd4b3a888fca

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/vulkan-validation-layers-angle-autoroll
Please CC tobine@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

Bug: None
Tbr: tobine@google.com
Change-Id: Ib96b03f57e54f3e39573482c56cae1a2bd0970a3
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2033407Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

Also update doc.

Bug: angleproject:3928
Change-Id: I1134e1fa9338fa95d647502bf62edb42555caec8
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2033487Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>

Bug: angleproject:4365
Change-Id: I4098ebdd718624e9d0578e0ee69f0a84a5b78183
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2033064
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This workaround was added due to qualcomm driver bug b/129281932. But
this has been fixed with recent drivers. Removing the WR here so that it
will not negatively affect performance.

Bug: angleproject:4344
Change-Id: Iea2ec86082a0ced64bfe843bf916c6bdb2aea60b
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2029210
Commit-Queue: Charlie Lao <cclao@google.com>
Reviewed-by: Tobin Ehlis <tobine@google.com>

Populate the entrypoints required to get gfxBench
Manhattan scene to capture and replay correctly from
the beginning of the trace.

Test: Captured and replayed Manhattan frames 0-500 on
both Windows and Linux (Nvidia GPUs)

Bug: angleproject:4091
Change-Id: I5447a6835e55e944772d37219f2bd414606f0a70
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2029216Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Commit-Queue: Cody Northrop <cnorthrop@google.com>

Most UtilsVk functions bind a descriptor set to index 0 (same as driver
uniforms). If that happens to close a render pass, all is well as
starting a new render pass ensures all descriptor sets are rebound.
However, if the render pass is not closed, or if a dispatch call is
issued (which never rebinds descriptor sets if not explicitly
necessary), then the driver uniforms descriptor set may end up never
rebound, causing a validation error (and possible crash or corruption).

This change makes sure that UtilsVk notifies the context when it binds a
descriptor set.  The context then dirties the driver uniforms binding
as appropriate.

Bug: angleproject:4272
Change-Id: Ief20c7884fbe39712f844247489812afc70b30a9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2027938
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

https://swiftshader.googlesource.com/SwiftShader.git/+log/6c3dc3581eaf..79b36b640692

git log 6c3dc3581eaf..79b36b640692 --date=short --first-parent --format='%ad %ae %s'
2020-01-30 capn@google.com Fix use after free
2020-01-30 capn@google.com Have Kokoro accept imports from Piper
2020-01-30 amaiorano@google.com Subzero: fix incorrect cast
2020-01-30 capn@google.com Export Vulkan API entry functions
2020-01-30 capn@google.com Support LLVM 9+ build changes
2020-01-30 bclayton@google.com Regres: Fix unix build
2020-01-29 capn@google.com Regres: aways use build output path for ICD json
2020-01-29 capn@google.com Associate bug IDs with unimplemented functionality
2020-01-29 amaiorano@google.com Fix memory leak in rr::Optimizer
2020-01-29 bclayton@google.com Regres: Make it work on windows.
2020-01-29 amaiorano@google.com Subzero: implement coroutines for Win32
2020-01-29 bclayton@google.com SpirvShaderDebugger: Expose builtins in HLSL / GLSL.
2020-01-29 bclayton@google.com Vulkan/Debug: Add VariableContainer::extend()

Created with:
  gclient setdep -r third_party/SwiftShader@79b36b640692

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-angle-autoroll
Please CC tobine@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

Bug: None
Tbr: tobine@google.com
Change-Id: I9ef2fb4008e8f9061df5b71bbf532f20a9caf188
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2032848Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-Tools.git/+log/ebe1b7497acb..260679605f98

git log ebe1b7497acb..260679605f98 --date=short --first-parent --format='%ad %ae %s'
2020-01-29 jeremyk@lunarg.com build: Update MoltenVK version in known_good.json

Created with:
  gclient setdep -r third_party/vulkan-tools/src@260679605f98

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/vulkan-tools-angle-autoroll
Please CC tobine@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

Bug: None
Tbr: tobine@google.com
Change-Id: Ia19dd5c1d3ce0bfbd2197c8e8482b9cd6572399d
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2032835Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-Loader.git/+log/44ac9b2f406f..fb94ccddb725

git log 44ac9b2f406f..fb94ccddb725 --date=short --first-parent --format='%ad %ae %s'
2020-01-28 shannon@lunarg.com build: Update known-good for 1.2.132 header

Created with:
  gclient setdep -r third_party/vulkan-loader/src@fb94ccddb725

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/vulkan-loader-angle-autoroll
Please CC tobine@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

Bug: None
Tbr: tobine@google.com
Change-Id: I4e12eb0260422c2dc86f2a71cc60fbf321647dd2
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2032834Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/SPIRV-Tools.git/+log/97f1d485b763..7a2d408dea60


Created with:
  gclient setdep -r third_party/spirv-tools/src@7a2d408dea60

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/spirv-tools-angle-autoroll
Please CC tobine@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

Bug: None
Tbr: tobine@google.com
Change-Id: Ia823c5eff6f7513d78345ef6d0193c026e0bf19e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2032837Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/9a80305c0897..5e86b28ffb81


Created with:
  gclient setdep -r third_party/glslang/src@5e86b28ffb81

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/glslang-angle-autoroll
Please CC tobine@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

Bug: None
Tbr: tobine@google.com
Change-Id: Ia4b90712005cf624f973a43dca3e335f552f963b
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2032838Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

Due to
warning C4467: usage of ATL attributes is deprecated

Bug: angleproject:3928
Change-Id: I6620acc85ae974445a2a01fc109568fac8c3b23b
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2032152
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Joint work with syoussefi@, who wrote the RewriteRowMajorMatrices
pass, and revised it for this CL to not rely on the
NameNamelessUniformBuffers pass - which was breaking it on the GL
backend.

Hook up previously written RewriteRowMajorMatrices transformation, and
enable on all GPU types on macOS. It is needed at least for AMD and
Intel GPUs.

Add a new test which verifies the behavior of dynamically-indexed
arrays of row-major matrices.

Bug: angleproject:2273
Bug: angleproject:3843
Change-Id: Id582f9cf6b9b1a59091aab1786539174f360b705
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2008717
Commit-Queue: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

To include Windows toolchain with UWP support from build.

Change log: https://chromium.googlesource.com/chromium/src/+log/e1633af636..8ffb18d0b9
Full diff: https://chromium.googlesource.com/chromium/src/+/e1633af636..8ffb18d0b9

Changed dependencies
* build: https://chromium.googlesource.com/chromium/src/build.git/+log/dfe5662014..e5293d8fa2
* buildtools: https://chromium.googlesource.com/chromium/src/buildtools.git/+log/6b3e658d6f..afc5b798c7
* testing: https://chromium.googlesource.com/chromium/src/testing/+log/c1b508625d..cf6ed46cff
* third_party/googletest: https://chromium.googlesource.com/chromium/src/third_party/googletest/+log/f8eeeb06c0..c83f99e10c
* third_party/jsoncpp: https://chromium.googlesource.com/chromium/src/third_party/jsoncpp/+log/1cfec065ed..493c9385c9
* third_party/libjpeg_turbo: https://chromium.googlesource.com/chromium/deps/libjpeg_turbo.git/+log/bc13578529..ce0e57e8e6
* third_party/yasm: https://chromium.googlesource.com/chromium/src/third_party/yasm/+log/02a8d2167f..0d0134789a
* third_party/zlib: https://chromium.googlesource.com/chromium/src/third_party/zlib/+log/f262c1b3c4..b9b9a5af7c
* tools/clang: https://chromium.googlesource.com/chromium/src/tools/clang.git/+log/a9190d6699..953ea7aff8
DEPS diff: https://chromium.googlesource.com/chromium/src/+/e1633af636..8ffb18d0b9/DEPS

Clang version changed c2443155a0fb245c8f17f2c1c72b6ea391e86e81:eaabaf7e04fe98990a8177a3e053346395efde1c
Details: https://chromium.googlesource.com/chromium/src/+/e1633af636..8ffb18d0b9/tools/clang/scripts/update.py

TBR=ynovikov@chromium.org,
Bug: angleproject:3928
Change-Id: I8346ac7f178e73388d3dda26c6994302ece79585
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2031764
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>

This will help for the command graph refactor so we can set up the
command buffer barriers before we start the render pass for draw.

Bug: angleproject:3539
Bug: angleproject:4029
Change-Id: If5a55db6ac1e06609a3a1e2245d7ab351152886a
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2028450Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

Some tweaks to when we call gtest initialization allows this to work.

Bug: angleproject:3162
Change-Id: I75159108d3f746f666e57c1a6495a8c8616ef1cf
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2024335
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jonah Ryan-Davis <jonahr@google.com>

Added GN bool arg "angle_extract_native_libs."
When "false," which is the default, the native libs are zipped in the ANGLE
apk. When true, the libs will be extracted which is useful when capturing
flame graphs in order to see the ANGLE function names in your flamegraph.

Bug: angleproject:4304
Change-Id: I86c91e5028688142b1137b859c800f2243c124d9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2028524Reviewed-by: Tim Van Patten <timvp@google.com>
Commit-Queue: Tobin Ehlis <tobine@google.com>

My earlier change https://crrev.com/c/1991969 had a bug. If
ARB_texture_rectangle is disabled once, it can't be re-enabled because
the extension behavior entry is deleted. ResetExtensionBehavior needs
to restore it.

Bug: angleproject:3770
Change-Id: Icf96acece8ea8d17287c8d09fb4849b61c9c2a36
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2023398Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: James Darpinian <jdarpinian@chromium.org>

glCopyTextureCHROMIUM calls in D3D11 would call getNativeTexture on the
copy source which would allocate a TextureStorage11 if one did not
already exist. This caused full mip-chain allocations in some cases when
we could have just copied directly from the staging Image11.

When navigating to wikipedia.org:

                      Peak memory | Stable memory
Passthrough (before):      142 mb |        119 mb
Passthrough (after):       138 mb |        106 mb
Validating:                139 mb |        110 mb

No mip-mapped textures were allocated after this change.

BUG=chromium:1030835

Change-Id: Icd14afaec445299423cfea293cba501d774f6ade
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2028147
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>

Fuchsia won't return VK_ERROR_OUT_OF_DATE_KHR after a size change, so we
need to check every frame. In fact we don't even tell Scenic what the new
size is during resize, because it does not care - the surface size
determines the "window size", not the other way around.

Bug: angleproject:4348
Change-Id: I8f9af0d1379f4993865c7ccedc9aba3cab90cf54
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2023914
Commit-Queue: Michael Spang <spang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

GL_OES_depth_texture_cube_map depends on depthTextureOES,
but adds the same new texture format/type requirements as
GL_OES_packed_depth_stencil, so instead of adding a
specific check for GL_OES_depth_texture_cube_map, the
Vulkan backend checks for a combination of
GL_OES_depth_texture and GL_OES_depth_texture_cube_map
to enable GL_OES_depth_texture_cube_map.

ANGLE has no specific checks for whether a format is
"cubemappable", but Vulkan has no restrictions of the
format of cubemaps, so if the proper formats are
supported, creating a cube of any of these formats
should be implicitly supported.

Bug: angleproject:4293
Change-Id: I968dbe8869ba0f50de18dd41f1195e847c06b520
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2026027
Commit-Queue: Alexis Hétu <sugoi@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>

This is not passing currently, skip it for now.

Bug: angleproject:4349
Change-Id: If36a144e8d17cc94c2186a7a794358b14223349e
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2023913
Commit-Queue: Michael Spang <spang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Remain the old hardware requirement for turning on clampArrayAccess. But
also turns it on universally for WebGL context. So that we won't suffer
from clampArrayAccess not handled properly on some compute shader deqp
tests.

Bug: chromium:1042252, angleproject:4361
Change-Id: Ib11affd6df27ce7d2100980d2b8decdee36876e8
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2026029Reviewed-by: James Darpinian <jdarpinian@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Shrek Shao <shrekshao@google.com>

There are no longer @@ QUALIFIER and or @@ LAYOUT markers.  Only @@
XFB-DECL @@ and @@ XFB-OUT @@ markers remain, which are now replaced
with simple string manipulation.

Bug: angleproject:3394
Change-Id: I9c1883458d9de3ea59ac08aae57a7c8985e7afbe
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2012741
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>

Remove the "override" table. That gets in the way of some solutions.
If a format cannot be supported by a native Vulkan format as indicated
in the "map" table, then check fallbacks.

Also add support for native RGBA4 and R5G5B5A1 support. Previously
those formats would be emulated with RGBA8 due to the override, but
now code will check if the native format is available and use it.

Bug: angleproject:4282
Change-Id: Ib33ea40543d91a2c2a95075b277f825a8822037c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1994538Reviewed-by: Tobin Ehlis <tobine@google.com>
Reviewed-by: Geoff Lang <geofflang@chromium.org>
Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>

The shader translator outputs arbitrary location indices.  Once compiled
by glslang, the SPIR-V transformer modifies these decorations.  If the
transform feedback extension is used, it will also add the relevant
decorations to the varyings that are captured.

Bug: angleproject:3394
Change-Id: I5ecafd0536408612a5d4b920dbabbfabe650657c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2008468
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

Lost no-error contexts should gracefully handle GetProgramiv, etc.

Includes test that a lost no-error context doesn't crash on getProgramiv.
Firefox bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1601703

Bug: angleproject:4244
Change-Id: I8c37df37e83308ab85ad958df6dab46b0ab348e1
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2003239Reviewed-by: Jamie Madill <jmadill@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>

https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang/+log/07a55839eed5..9a80305c0897


Created with:
  gclient setdep -r third_party/glslang/src@9a80305c0897

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/glslang-angle-autoroll
Please CC tobine@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

Bug: None
Tbr: tobine@google.com
Change-Id: I3161499b3a6b2e3ad96ef5952782c4409289fa1c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2027195Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://chromium.googlesource.com/external/github.com/KhronosGroup/Vulkan-Tools.git/+log/e39b5cf6a1b6..ebe1b7497acb

git log e39b5cf6a1b6..ebe1b7497acb --date=short --first-parent --format='%ad %ae %s'
2020-01-28 charles@lunarg.com vulkaninfo: use patch version from instance

Created with:
  gclient setdep -r third_party/vulkan-tools/src@ebe1b7497acb

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/vulkan-tools-angle-autoroll
Please CC tobine@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

Bug: None
Tbr: tobine@google.com
Change-Id: I878644e5a636c1a21740dda675b6199a86b9f118
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2027217Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

https://swiftshader.googlesource.com/SwiftShader.git/+log/34e16df059f8..6c3dc3581eaf

git log 34e16df059f8..6c3dc3581eaf --date=short --first-parent --format='%ad %ae %s'
2020-01-28 capn@google.com Support LLVM 8+ build changes
2020-01-28 bclayton@google.com SpirvShaderDebugger: Fix double nesting of struct members

Created with:
  gclient setdep -r third_party/SwiftShader@6c3dc3581eaf

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/swiftshader-angle-autoroll
Please CC tobine@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

Bug: None
Tbr: tobine@google.com
Change-Id: Ie221229f552143cbb8c98b731b5bd4fdd3a17195
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2027194Reviewed-by: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: angle-autoroll <angle-autoroll@skia-public.iam.gserviceaccount.com>

The shader translator outputs arbitrary location indices for fragment
outputs.  Once compiled by glslang, the SPIR-V transformer modifies
these decorations.

Bug: angleproject:3394
Change-Id: Ib9d8336bccc392e789e4d93031fdcce9c466b7a6
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2011214
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

The shader translator outputs arbitrary location indices for vertex
attributes.  Once compiled by glslang, the SPIR-V transformer modifies
these decorations.

Bug: angleproject:3394
Change-Id: I88453b44e3a8770f51e79228148233ff308f1885
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2011212
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>

This change introduces a SPIR-V transformer that modifies shader
interface variable decorations directly in SPIR-V instead of
manipulating the input GLSL.  Currently, descriptor set and binding
indices are set by the transformer.

The shader translator outputs arbitrary set and binding indices.  Once
compiled by glslang, the SPIR-V transformer modifies these decorations.
The ultimate goal is to be able to modify the SPIR-V again when program
pipeline objects decide a different set/binding is necessary.

Bug: angleproject:3394
Change-Id: If358265a72bf1fe9f5676562b39a632cb2e05dc4
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2001477Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>

This doesn't work and is highly misleading as the tests run with the real
GPU.

Bug: angleproject:4353
Change-Id: Id9139436e39d5e8e063bcc679b7c63f589d3b748
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2023912
Commit-Queue: Michael Spang <spang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

The vulkan driver is missing required extensions so these tests are all
failing.

Bug: angleproject:4352
Change-Id: Id1af7c40798d8844fbf832c6066260fe3a8bfeda
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2023911
Commit-Queue: Michael Spang <spang@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

These were never assigned a location.  They are now removed by the
translator similar to other inactive variables.

Bug: angleproject:4313
Change-Id: I3398d06e1dea3f43b84f206cca07cde5b44b21a8
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2021734Reviewed-by: Tim Van Patten <timvp@google.com>
Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>

This optimization pass breaks the build by exporting volk's internal
binding symbols from libGLESv2.so. Since the test binary also links volk,
this causes a SEGV as the wrong (uninitialized) function pointer is
called.

This is an LLVM bug and will be fixed upstream:
https://reviews.llvm.org/D73235

Bug: angleproject:4351
Change-Id: Iebe0eabd975f8109231df30eef8c9074af8190e9
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2023910Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
Commit-Queue: Michael Spang <spang@chromium.org>