This patch fixes the issues on the initialization of buffers with
MapRead usage and mappedAtCreation == true.
1. The buffers with MapRead usage and mappedAtCreation == true can be
read from the CPU side just after the creation of the buffer,
however at that time the internal pending command buffers may not
be executed, thus causing the buffer is not cleared as is expected.
2. On D3D12 the buffer with MapRead and mappedAtCreation == true is
created on the READBACK heap, so all the data written in the CPU
side cannot be uploaded to the GPU memory. When the buffer is mapped
again all the original data written through the CPU pointer will be
overwritten by the data in the GPU memory (which means it is also
cleared to 0).
This patch fixes this issue by:
1. clearing the buffers with mappedAtCreation == true on the CPU side.
2. on D3D12 making the buffer with MapRead and mappedAtCreation == true
use the staging buffer instead of mapping itself.
Note that this change is only related to the code path with Toggle
"nonzero_clear_resources_on_creation_for_testing" enabled, currently
we don't plan to do the similar change when we enable Dawn wire.
BUG=dawn:414
TEST=dawn_end2end_tests
Change-Id: I2b3d0840333e8d99759800ab9fc141d0a7cf2f8d
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/27220
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
MapAsync in dawn_native is fully implemented and only missing
a couple cleanups that can be done once MapRead/WriteAsync are
removed.
MapAsync in dawn_wire is left as a pure shim on top of
MapRead/WriteAsync and will be transitioned to its own commands
in follow-ups.
All MapRead/WriteAsync end2end and validation tests are duplicated
for MapAsync.
Bug: dawn:445
Change-Id: Ib1430b9257149917be19a84f13e0ddd2a8eccc32
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24260
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
In the validation tests, we relied on Queue.Submit(0, nullptr) to
resolve mapping operations. This is fragile so we replace it with a
FlushMappingOperations() function that uses device.Tick() instead.
This allows removing the mapSerial argument from
Buffer::MapRead/WriteAsyncImpl (which was the actual goal of this CL).
Bug: dawn:445
Change-Id: Id98822287370c371bebb83afb8e290e17f3c1b55
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24381
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This CL:
- Adds mappedAtCreation to dawn.json
- Changes dawn_native to implement CreateBufferMapped in terms of
mappedAtCreation.
- Duplicates all the CreateBufferMappedTests to mappedAtCreation tests
(both validation and end2end).
- Implements dawn_wire's mappedAtCreation in terms of
CreateBufferMapped. The reversal in dawn_wire will be done in a
follow-up CL.
Bug: dawn:445
Change-Id: I70b9fa729b1402524a6b993c3f288987eb65c6c4
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24083
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
GetMappedRange never produces errors and instead returns nullptr when it
is disallowed. When in a correct state, should return a valid pointer as
much as possible, even if the buffer is an error or if the device is
lost.
Adds tests for error buffers and device loss, and modify existing tests
to not expect a device error.
Also removes some dead code in the Vulkan backend and adds a fix for
missing deallocation of VkMemory on device shutdown.
Bug: dawn:445
Change-Id: Ia844ee3493cdaf75083424743dd194fa94faf591
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24160
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Stephen White <senorblanco@chromium.org>
This patch implements buffer lazy initialization before writeBuffer():
if the buffer is not initialized and writeBuffer() doesn't cover the
whole buffer, the buffer will be cleared to 0, otherwise the buffer
shouldn't be cleared.
This patch also introduces a toggle LazyClearBufferOnFirstUse for the
development of buffer lazy initialization: before buffer lazy
initialization being completely supported, all the related code will
only be enabled behind this toggle to prevent the buffers with valid
content being unexpectedly cleared.
BUG=dawn:414
TEST=dawn_end2end_tests
Change-Id: I99a2aa98ca4b9b21d69c6b32080afb525e2c4ad3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24041
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
SetSubData's count is a uint64_t while Queue::WriteBuffer's is a size_t
so we add a small validation check that no narrowing will occur.
No test is added because SetSubData will be removed soon, and it will be
hard to test because of the Null backend's artificial OOM.
This was found while debugging an unrelated fuzzer issue.
Bug: chromium:1099621
Change-Id: I27a9da2b94f51e889c5573f88d4a0a73fea5985c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23961
Reviewed-by: Stephen White <senorblanco@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This also removes the reliance on BufferBase::IsMapped to know whether
to unmap on destroy. This call was confusing because it was used by the
D3D12 backend to know if its own storage was mapped, but semantically
seemed to check for Buffer::State::Mapped (and not MappedAtCreation).
Bug: dawn:445
Change-Id: I3d6fde1d2996798d53264d5643545f0efb90551a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/24060
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Brandon Jones <brandon1.jones@intel.com>
This CL adds GetMappedRange reusing the existing GetMappedPointerImpl
call in dawn_native. In dawn_wire tracking is added to keep a
Buffer::mMappedData around.
Tests are added to test the result of Get[|Const]MappedRange in all
buffer states.
Bug: dawn:445
Change-Id: I3737dc4d36f31d392839952da0b5c0d10c7c8a88
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23861
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
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>
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 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>
All the buffer backend files had basically the same implemenations
of MapRequestTracker and the tracker was owned by device backends.
This refactor puts MapRequestTracker into its own file
and has the tracker be owned by DeviceBase and BufferBase.
Bug: dawn:400
Change-Id: Id28422b575e9c04d4435d5f119e0ffe08c2d1ce8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/21760
Commit-Queue: Natasha Lee <natlee@microsoft.com>
Reviewed-by: Austin Eng <enga@chromium.org>
This patch adds the validation rules on the texture usage scope with
storage textures in one render pass.
1. Write-only storage cannot be used in combination with anything else
in the same render pass.
2. Sampled and read-only storage are allowed to be used in the same
render pass.
This patch also adds dawn_unittests to test the storage texture usage
scope in one render pass:
1. read-only or write-only storage only
2. read-only or write-only storage + sampled
3. read-only or write-only storage + output attachment
4. read-only + write-only
This patch also removes kWritableBufferUsages as it is not used in Dawn
at all.
BUG=dawn:267
TEST=dawn_unittests
Change-Id: Ib2a0f06ec8d183c5f812f87459c6b1b8f79937e0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19820
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
RefCounted (and derived) destructors should be protected on the class
to ensure the objects can ONLY be destructed by calling Release. This
avoids errors cause by destroying objects out from under code which
has an active reference count.
Unfortunately, many of the 'base' classes must continue having public
destructors because they are used as "blueprint" objects created on
the stack.
Added final on most-derived classes.
Ideas for future improvement:
- Change "base" objects to have protected destructors but create new
blueprint objects that privately derive from base objects. This
limits the blueprint object's usefulness to only be a blueprint.
- Modify createX methods to return Ref<Object> instead of Object*
Change-Id: I6f3b3b178118d135c4342cb912e982a3873d71af
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18780
Commit-Queue: Rafael Cintron <rafael.cintron@microsoft.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This is a reland of 34ac535f02
Original change's description:
> Implement readonly storage buffer - validation at API side
>
> This patch adds validation code for API side for readonly storage
> buffer. It also adds unit tests for API validation.
>
> BUG=dawn:180
>
> Change-Id: I9a97c5f3aa23e720619d138ca55d7b17f08d64c9
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12620
> Reviewed-by: Austin Eng <enga@chromium.org>
> Commit-Queue: Yunchao He <yunchao.he@intel.com>
Bug: dawn:180
Change-Id: I1e107ff6168279940496317b973f2d8c7c3c6114
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13083
Reviewed-by: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This reverts commit 34ac535f02.
Reason for revert: Failing Dawn into Chromium roll due to failed ASSERT
https://ci.chromium.org/p/chromium/builders/try/dawn-linux-x64-deps-rel/3514
Original change's description:
> Implement readonly storage buffer - validation at API side
>
> This patch adds validation code for API side for readonly storage
> buffer. It also adds unit tests for API validation.
>
> BUG=dawn:180
>
> Change-Id: I9a97c5f3aa23e720619d138ca55d7b17f08d64c9
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12620
> Reviewed-by: Austin Eng <enga@chromium.org>
> Commit-Queue: Yunchao He <yunchao.he@intel.com>
TBR=cwallez@chromium.org,kainino@chromium.org,yunchao.he@intel.com,enga@chromium.org
Change-Id: I64e5dfd40e7aab982d97fb48544180bc9b8ea558
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: dawn:180
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12981
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This patch adds validation code for API side for readonly storage
buffer. It also adds unit tests for API validation.
BUG=dawn:180
Change-Id: I9a97c5f3aa23e720619d138ca55d7b17f08d64c9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12620
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
This is to match the naming convention of WebGPU's WebIDL and webgpu.h
BUG=dawn:22
Change-Id: Ia91c5a018403e6a72eb0311b5f1a072d102282a2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/10461
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Skia-dawn found these; not sure why Chrome and Dawn standalone don't.
Change-Id: I43706fbaca94d1718de0be727151dd8f3a191df2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/9220
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This is to match the equivalent rename in WebGPU's IDL.
BUG=dawn:22
Change-Id: Ibdf75869e58835d984df559878b884c55310a403
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/8623
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Yunchao He <yunchao.he@intel.com>
This requires some changes in the wire because WireCmd doesn't know the
size of void. This also adds a handwritten implementation of the Wire
commands for SetSubData that internally converts to uint8_t so that
WireCmd can generate the de/serialization.
BUG=dawn:160
Change-Id: Icbf0fd7dd841639ee6f67333844e027b27a8afcc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/7780
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This uses an intermediate staging buffer to copy data into the buffer.
Bug: dawn:7
Change-Id: I3bda19a8450ef0eddc5b4382ce1b9120f074b917
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/7500
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
This initial reasoning for having a u64 userdata was to be able to pack
two u32s in a single userdata but that was never used, and made a bunch
of code uglier than it should.
BUG=dawn:160
Change-Id: Ia0d20bc23f09f5d8f3748ca4edd1a331604f2ba8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/7561
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This is the first command to return a struct. This patch also
updates the code generator to support structure return values.
Bug: dawn:7
Change-Id: Ie8acec895c0ec88429672138ffc900032fbbc447
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/4780
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Double free was happening if buffer.Destroy() was called right
before the buffer went out of scope since DestroyImpl wouldn't
check to see if the resource was already released.
Also refactor Destroy in Texture classes to match the pattern
of Buffer classes. Added validation of the texture object when
Destroy is called.
Bug: dawn:124, chromium:947323
Change-Id: I0e4a652ff5b86a151b4919c781c1dd385b4e3213
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/6060
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Natasha Lee <natlee@microsoft.com>
This requires deleting wire tests for builders that were using it, and
leads to small simplifications in the WireTest harness. Also allows
removing the BuilderBase class from dawn_native.
BUG=dawn:125
Change-Id: I3cbac609207aa652cdc9d37e0b700cce3ac6e093
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/6120
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This reverts commit 9bf529ec94.
Reason for revert:
Fixed test failure by submitting basic render pass to clear out texture
before running the tests.
The test was failing previously because the texture pixel color was not
cleared before running the tests, causing unexpected
pixel colors to be compared. Creating a basic render pass clears
the texture, but since the first test fails on submit expectedly,
the pixel is never cleared.
Bug: dawn:46
Change-Id: Ic190c2d8d6af3f9d8def3370b92c6974a82a0096
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/5500
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Natasha Lee <natlee@microsoft.com>
This is to match Chromium style.
Change-Id: Ic97cc03e2291c653ade9662ba3d5e629872b10ad
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/5482
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This reverts commit b6a80b321e.
Reason for revert: dawn_end2end_tests are failing on the Chromium GPU FYI bots. Example here: https://ci.chromium.org/p/chromium/builders/ci/Win10%20FYI%20Release%20%28NVIDIA%29/4226
Original change's description:
> Destroy backend implementation for Buffers
>
> Destroy can be used to free the GPU memory associated with resources
> without waiting for javascript garbage collection to occur.
> The buffer is validated at submission to the queue.
> So any buffer that has been destroyed before submission, will then
> invalidate the submit and result in an error.
>
> Bug: dawn:46
> Change-Id: I40df56ce97baef01deea7552d7a6d40b558fc985
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/5320
> Reviewed-by: Kai Ninomiya <kainino@chromium.org>
> Commit-Queue: Natasha Lee <natlee@microsoft.com>
TBR=cwallez@chromium.org,kainino@chromium.org,enga@chromium.org,rafael.cintron@microsoft.com,natlee@microsoft.com
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: dawn:46
Change-Id: Iadf37a8a6675c744207ec7daaa3fd2fde7da3714
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/5480
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Destroy can be used to free the GPU memory associated with resources
without waiting for javascript garbage collection to occur.
The buffer is validated at submission to the queue.
So any buffer that has been destroyed before submission, will then
invalidate the submit and result in an error.
Bug: dawn:46
Change-Id: I40df56ce97baef01deea7552d7a6d40b558fc985
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/5320
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Natasha Lee <natlee@microsoft.com>
Manages a single persistently mapped GPU heap which is sub-allocated
inside of ring-buffer for uploads. To handle larger buffers without additional
unused heaps, ring buffers are created on-demand.
BUG=dawn:28
TEST=dawn_unittests
Change-Id: If4d3e717186895b1409502c1dea5ab751a4776b2
Reviewed-on: https://dawn-review.googlesource.com/c/4440
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
This is part of making buffer mapping match WebGPU
Bug: dawn:7
Change-Id: Ia97c872e398112aef0f93c98618c8a7f3ff0c19a
Reviewed-on: https://dawn-review.googlesource.com/c/4580
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Adds Destroy() to the Buffer frontend but doesn't implement
it in the backend yet.
Bug: dawn:46, dawn:7
Change-Id: I2e6bdba1484fc5f49599801b4ffe3e9a6aaf60a5
Reviewed-on: https://dawn-review.googlesource.com/c/3720
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Dawn used to return "nullptr" when an error happened while creating an
object. To match WebGPU we want to return valid pointers but to "error"
objects.
This commit implements WebGPU error handling for all "descriptorized"
objects and changes the nullptr error checks into "ValidateObject"
checks. This method is used both to check that the object isn't an
error, but also that all objects in a function call are from the same
device.
New validation is added to objects with methods (apart from Device) so
they check they aren't error objects.
A large number of ASSERTs were added to check that frontend objects
aren't accessed when they are errors, so that missing validation would
hit the asserts instead of crashing randomly.
The bind group validation tests were modified to test the behavior with
both nullptrs and error objects.
Future commits will change the CommandBufferBuilder to not be a builder
anymore but an "Encoder" instead with special-cased error handling. Then
once all objects are descriptorized, the notion of builders will be
removed from the code.
BUG=dawn:8
Change-Id: I8647712d5de3deb0e99e3bc58f34496f67710edd
Reviewed-on: https://dawn-review.googlesource.com/c/4360
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Manages a single persistently mapped GPU heap which is sub-allocated
inside of ring-buffer for uploads. To handle larger buffers without additional
unused heaps, ring buffers are created on-demand.
BUG=dawn:28
TEST=dawn_unittests
Change-Id: Ifc5a1b06baf8633f1e133245ac1ee76275431cc5
Reviewed-on: https://dawn-review.googlesource.com/c/3160
Commit-Queue: Bryan Bernhart <bryan.bernhart@intel.com>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Likewise "presented" textures won't be available for use in submits so
this sets up state-tracking and validation for textures too.
Command buffer resource usage is now stored in the frontend instead of
done per-backend because it is used to validate resources are allowed in
the submits.
Also adds a test.
BUG=dawn:9
Change-Id: I0537c5113bb33a089509b4f2af4ddf4eff8051ea
Reviewed-on: https://dawn-review.googlesource.com/c/2142
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
ObjectBase will contain data that all WebGPU objects have such as a
pointer back to the device, a refcount (via inheriting from RefCounted),
a name, an error status etc.
BUG=dawn:24
Change-Id: I919e1a6d4a68811ceb6e503b2a793815c92f2528
Reviewed-on: https://dawn-review.googlesource.com/c/1620
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Jiawei Shao
Corentin Wallez
Enrico Galli
Austin Eng
Natasha Lee
Rafael Cintron
Brandon Jones
Yunchao He
Bryan Bernhart
Stephen White