Reland after a refactor of how the extension handling work in the Vulkan
backend.
The original author is David Turner <david.turner.dev@gmail.com>.
Certain Vulkan ICDs (Intel ones notably) will compile SPIR-V
shaders with an liberal, compiler-selected, subgroup size (i.e.
either 8, 16 or 32). For more context, see [1].
This can be a problem for compute, when one shader stores data
in device memory using a subgroup-size dependent layout, to be
consumed by a another shader. Problems arise when the compiler
decides to compile both shaders with different subgroup sizes.
To work-around this, the VK_EXT_subgroup_size_control device
extension was introduced recently: it allows the device to
report the min/max subgroup sizes it provides, and allows
the Vulkan program to control the subgroup size precisely
if it wants to.
This patch adds support to the Vulkan backend to report and
enable the extension if it is available. Note that:
- This changes the definition of VulkanDeviceKnobs to
make room for the required pNext-linked chains of
extensions.
- A helper class, PNextChainBuilder is also provided in
UtilsVulkan.h to make it easy to build pNext-linked
extension struct chains at runtime, as required when
probing device propertires/features, or when
creating a new VkDevice handle.
- This modifies VulkanDeviceInfo::GatherDeviceInfo() to
use PNextChainBuilder to query extension features and properties
in a single call to vkGetPhysicalDevice{Properties,Features}2.
Apart from that, there is no change in behaviour in this CL.
I.e. a later CL might force a specific subgroup size for
consistency, or introduce a new API to let Dawn clients
select a fixed subgroup size.
[1] https://bugs.freedesktop.org/show_bug.cgi?id=108875
Bug: dawn:464
Change-Id: I01e5c28e7dac66f0a57bf35532eb192912b254fa
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23201
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
All existing tests and samples are updated and deprecation tests added.
CommandEncoder still encodes using arrayLayers so the backends are
unchanged. They will be handled in a follow-up CL.
Bug: dawn:22
Change-Id: Ib5346b46eb04d97349cab8f32ef8da5034726ca8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23104
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
This CL checks buffer sizes before creating map read/write handles.
It is an error to map a buffer that can't be addressed on the CPU.
It also changes client-side synchronous errors on mapAsync to be
normal map failures, and not device lost errors. These should be
recoverable.
The CL adds additional testing for really large, but not UINT64_MAX
buffers, and fixes a VVL warning when buffer allocations exceed the
size of their memory heap.
Bug: dawn:450, dawn:398, chromium:1014740
Change-Id: Ieb34c04c3d01c429b7e3b7810729d5e91ecb6270
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22626
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
If a texture's old states of all subresources are the same, and its
new states are the same too, then we can use one barrier to transit
states for all subresources. We don't need to use one barrier per
each subresource.
This change can reduce barriers we dispatched, in order to improve
performance for particular situations.
Bug: dawn:441
Change-Id: I9fe9dabda725e05d4ce5a8e69ee7b40e6724a22a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23145
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
This patch put subresource related variables like baseMipLevel,
levelCount, baseArrayLayer, layerCount into a single struct at
backends.
Bug: dawn:157
Change-Id: I50c6bb0ed8ae7a184506c23cab4b64a472bbd75e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23163
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
This makes the tracking in TextureBase match the shape of
wgpu::TextureDescriptor.
GetSize() becomes a bit more surprising because the depth can sometimes
be the array size, so new getters GetWidth(), GetHeight() and GetDepth()
are added.
Some simplifications to the backend texture creation code are included
that will make it less error prone to add support for 1D / 3D textures.
Bug: dawn:22
Change-Id: I33b6ca99af9d58fc88f5f626cfd5e2e62a8b45cb
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23103
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This updates CL:
- Adds a deprecation warning to use size.depth instead of
arrayLayerCount.
- Changes all tests and samples to use size.depth.
- Adds deprecation tests for the change.
In particular the state tracking in TextureBase isn't changed yet
because it requires non-trivial changes in the backends. It will be done
in a follow-up CL.
Bug:dawn:22
Change-Id: Ic02dfb5baaba8d5b06cd339ce988e9b1d16cb5e9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23101
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This patch enables nonzero_clear_resources_on_creation_for_testing
toggle on buffer on OpenGL backends as a preparation of supporting
buffer lazy-initialization in Dawn.
BUG=dawn:414
TEST=dawn_end2end_tests
Change-Id: Ib49ad17a5d89e14dbdb08d2eb8d6441fadb68f10
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23143
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
This patch enables nonzero_clear_resources_on_creation_for_testing
toggle on buffer on D3D12 backends as a preparation of supporting
buffer lazy-initialization in Dawn.
BUG=dawn:414
TEST=dawn_end2end_tests
Change-Id: Id4f45ff5ccf906692c3855451b120aa56f68c7a9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23142
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Prevents the d3d12 fuzzer from building on non-windows platforms.
bug: dawn:444
bug: chromium:1094230
Change-Id: I3ce20c645b3fe99b51e06b493ced34308d7cc21e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23162
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Brandon Jones <brandon1.jones@intel.com>
When we do transition barriers for a texture view outside of a pass
(say copy, clear, initialization), if the texture view can cover all
subresources, and its old usages across all subresources are the
same, then we can use one transition barrier. We don't need to use
separate barrier per each subresource.
This patch can reduce barrier we delivered, and improve performance
for particular situations.
Bug: dawn:441
Change-Id: I2ae9b39793915553cbaaceacaf58bf87c9ba3bc6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23129
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
This is preparatory change for a subsequent CL that will deprecate
TextureDescriptor::arrayLayerCount in favor of size.depth.
Bug: dawn:157
Bug: dawn:22
Change-Id: Id64556dc81056fbe7751073ffe9872026c145e77
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23102
Reviewed-by: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
The checks for dependencies of Device extensions were incomplete, makes
sure the transitive dependencies of the extensions we care about are all
known so they can participate in the dependency check.
Also removes a workaround for surprising Vulkan behavior with instance
extensions getting promoted as device functions. This should be handled
correctly now as DeviceExt contains the physical device extensions as
well.
Bug: dawn:457
Change-Id: I4b79729d809c9edfedcb075a0e6aa5b4dd473ab3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22942
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Fixes bug where a newly allocated ShaderVisibleDescriptorHeap would be
untracked in the residency LRU upon allocation, causing Dawn's residency
manager to become out of sync with D3D12's internal residency refcount
by calling MakeResident once more than needed.
Bug: dawn:193
Change-Id: I47804471b41df476db989634e50bded6006e05aa
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23125
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Moves last TickImpl call during ShutDown to only be called if the
device was fully created.
Bug: dawn:400, chromium:1093639
Change-Id: I25437e3b33d0fc57f21e82c63bfb0fd4d9384175
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23123
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This patch put subresource related variables like baseMipLevel,
levelCount, baseArrayLayer, layerCount into a single struct at
front-end. We have a lot more at backend too, a following patch
will do that.
Bug: dawn:157
Change-Id: Iab5633a4246b6ae89b80c39f5672dbb31d7a3e78
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22704
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
D3D/VK driver may return a size larger than requested and could cause
PowerOfTwo() to overflow. This change adds a check to ensure the size
is within the limit before attempting sub-allocation.
BUG=dawn:27
Change-Id: I2b2ce727abff953642a69b65c8f30be8e53e562d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23060
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Similarly to the CL for Instance extensions, it makes each device
extension linked to an enum class and a bitset. Logic surrounding device
extensions is changed to take advantage of this to be more programmatic
and less error prone when adding support for a new extension.
Bug: dawn:457
Change-Id: Iecf623c40b890b7e00ba972d5eac0712866692b5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22941
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
If a texture follow this rule:
* old usages of all subresources are the same
* new usages of all subresources are the same
Then we can use one barrier to transit states for all subresources.
We don't need to use one barrier per each subresource.
This patch adds a flag at front-end to capture many (but not all)
situations which follow the rule above, then we don't need to loop
over every subresource at Vulkan backend.
Bug: dawn:441
Change-Id: I6124ee2cb09c9142fefd8f057dc6d2659301e2d4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22702
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Adds harness for fuzzing the d3d12 backend with a WARP device.
Bug: dawn:444
Change-Id: I3e5ca325b19eb8b6cfe53e4d833c5acbbd293a26
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22880
Commit-Queue: Brandon Jones <brandon1.jones@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
At the moment each instance extension needs special handling
in 6+ places when added to the Vulkan backend. This is very
error-prone and makes it difficult to do changes in how they
are extensions are handled.
This CL makes instance extensions linked with an enum class
and a bitset to know which are available (instead of individual
booleans). A table of known extensions with more information like
`versionPromoted` so that they can be handled programmatically.
Bug: dawn:457
Change-Id: I266deb730eb2b7f3ab0ee7ada1b06ff9748a60e4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22940
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This case verifies that reading from one read-only storage texture then
writing into another write-only storage texture in one dispatch are
supported in compute shader.
Bug: dawn:458
Change-Id: If1b4c13da067fa39b45a378b54c22a4162695c8d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23040
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
This catches a few driver bugs or validation errors when doing empty
copies.
Bug: dawn:446
Change-Id: Ibef50b0c03b2fa24bc00cf5c7b6d26b8ac6fae8a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19602
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
When creating a zero-sized buffer mapped, StagingBuffer creation
is skipped. This required adding a new MappedAtCreation state
since mStagingBuffer couldn't be used as a tag value for that.
Made the OpenGL backend always create non-zero-sized buffers.
Finally added tests for MapRead/WriteAsync and CreateBufferMapped
of zero-sized buffers.
Bug: dawn:446
Change-Id: I04f6fe98fd646f1867c21065cd1cd33a1595e19f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/21481
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This patch enables nonzero_clear_resources_on_creation_for_testing
toggle on buffer on Vulkan backends as a preparation of supporting
buffer lazy-initialization in Dawn.
BUG=dawn:414
TEST=dawn_end2end_tests
Change-Id: I7619d02ae898e30fd15438d35437802a09e959cc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22981
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
This patch enables the tests CopyTests_T2T/CopyWithinSameTexture* on
D3D12 after the D3D12 texture subresource tracking has been supported.
This patch also changes the related comment in Vulkan as WebGPU CG has
already decided to disallow the overlaps among source and destination
subresources in texture-to-texture copies.
BUG=dawn:453
TEST=dawn_end2end_tests
Change-Id: Ibf008c800cfea62658050f565f321a391412c54c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23000
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Pipeline layout incorrectly indexes into a root table array
when there are more root descriptors than root tables.
To fix, the array is dynamically sized where parameters
are appended instead of indexed into the root signature.
Bug: dawn:449
Change-Id: I6d7f65fb791d323704b1c3a3af9c871a79e32a30
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22960
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Metal supports FP16 on both macOS and iOS, so we can
unconditionally enable this extension on Metal backend.
BUG=dawn:426
TEST=dawn_end2end_tests
Change-Id: I16c9c907bb112a66e76506ede9bc89a04313d7b3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22882
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Xinghua Cao <xinghua.cao@intel.com>
This patch enables nonzero_clear_resources_on_creation_for_testing
toggle on buffer on Metal backends as a preparation of supporting buffer
lazy-initializations in Dawn.
BUG=dawn:414
TEST=dawn_end2end_tests
Change-Id: Ia7106482922aeb0521affa206f459d40938a0131
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22861
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This patch makes Dawn provide more detailed error messages when the
pipeline layout is not compatible with shader module, which is helpful
to debug such errors in WebGPU applications.
BUG=dawn:456
Change-Id: Ib5a870d8e66645481434c4d3dc6fdc1a585aac36
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22881
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
When we use a texture for different purpose, we need to add proper
barrier(s) in order to make it ready. Previously, the barrier is
done per entire texture. So it is invalid to sample/read/copy from
one subresource (say a mip/array slice) and render/write/copy to
another subresource of the same texture at the same time.
With this patch, barrier is set per each texture subresource. So it is
valid to use a subresource as source and use another subresource of the
same texture as destination at the same time.
However, planar slices like depth/stencil planes are not handled
gracefully. This is a TODO task. Another task is to combine barriers
into one if they can be combined. I will do this optimization in
another patch in near future.
Bug: dawn:157
Change-Id: I783a76cb88fcdffb60c307ddfb89d50f1583201a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22101
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
This patch combines barriers in a render/compute pass into one
function call.
Previously, we need to dispatch barrier(s) for each buffer/texture
in a pass. So we may need quite a lot function calls to deliver
barriers in a pass in real web applications. One example is that
we did see that too many function calls to deliver barriers in
Aquarium (WebGPU porting) contributed to CPU usage and bottleneck.
Bug: dawn:441
Change-Id: Ibe44967fefd2e1e6e64df4587146c4fb7fbe8e73
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22700
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
The defaulting when bytesPerRow is 0 has been removed so there was a
validation error.
Bug: dawn:432
Bug: dawn:455
Change-Id: I8e38eb7aeb315d93cc8a9528beb77b9285b368d7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22800
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This reverts commit 0357eed7de
and reland commit bdc05c3d5f.
The Vulkan-Loader has a bug where if the instance is created
with Vulkan 1.1 and not the promoted extensions, it will skip
emulation and if the ICD doesn't support Vulkan 1.1 nor the
extensions. Enable the promoted extensions, even when creating
a Vulkan 1.1 instance.
Original change's description:
> Check FP16 support on vulkan backend
>
> This patch check FP16 support on vulkan backend, and introduces
> the shader_float16 extension.
>
> BUG=dawn:426
> TEST=dawn_end2end_tests
>
> Change-Id: Ie09568a416ce9eb2c11afeede3e7da520550d5fb
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/21901
> Commit-Queue: Xinghua Cao <xinghua.cao@intel.com>
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
> Reviewed-by: Kai Ninomiya <kainino@chromium.org>
> Reviewed-by: Austin Eng <enga@chromium.org>
Bug: chromium:1087896, dawn:426
Change-Id: I2c4465fb2fe957966b44d3e5840112219481c639
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22781
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This patch adds validations on the texture-to-texture copies within the
same texture to align with the latest change in WebGPU SPEC: When the
source and destination textures are the same one, the source and the
destination subresources involved in the copy must not overlap.
Note that we don't enable the newly added end2end tests on D3D12
because when doing texture-to-texture copy within the same texture, we
need to set the source subresources into TRANSFER_SRC state and set the
destination subresources into TRANSFER_DEST state, while right now we
don't support subresource tracking on D3D12.
BUG=dawn:453
TEST=dawn_unittests
TEST=dawn_end2end_tests
Change-Id: I6408640d01beaf6ab9ef30b001e9c87cfecbdd65
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/21601
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
This patch changes all the tests related to write-only storage textures
in dawn_end2end_tests StorageTextureTests to make them test all the
texture formats that support being used as storage textures in WebGPU.
BUG=dawn:267
TEST=dawn_end2end_tests
Change-Id: I4e49efc21f768a9b7645bf334bd41a97fd4838e7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22663
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Zero-sized copies are invalid in a couple backends, and in follow up
CLs CreateBufferMapped will be change to handle zero-sized buffers
correctly.
Bug: chromium:1069076
Change-Id: Ieef62a13182bbe1e939a3847980c91339e42aa8f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22460
Reviewed-by: Stephen White <senorblanco@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This patch changes all the tests related to read-only storage textures
in dawn_end2end_tests StorageTextureTests to make them test all the
texture formats that support being used as storage textures in WebGPU.
BUG=dawn:267
TEST=dawn_end2end_tests
Change-Id: I4d6ddbee638a787a2dcfc626bd4963a9b9043772
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/22640
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
To avoid overly ticking, we only want to tick when:
1. the last submitted serial has moved beyond the completed serial
2. or the completed serial has not reached the future command serial added
by the trackers (MapRequestTracker, FenceSignalTracker, ErrorScopeTracker).
Bug: dawn:400
Change-Id: Ie7c65acc332846ac1a27f9a18f230149d96d2189
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19062
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Natasha Lee <natlee@microsoft.com>