Bug: dawn:628
Change-Id: Ib6a6be0e5467d3cdd6432834d6f9d5c2000b18be
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/76340
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Loko Kung <lokokung@google.com>
However there are a lot more things to implement for full support:
- Copies from/to buffers.
- Copies from/to other textures.
- WriteTexture
- Lazy initialization (if needed)
- Anything using views and 1D textures in shaders
So they are currently marked as unsafe API.
Bug: dawn:814
Change-Id: I3f1aac87bd5bc27f710d58e525938c1226d093d8
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/64542
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Bug: dawn:160
Change-Id: Ifbce6f71fdf43a749c332bd691b63119929e0128
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/75640
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>
But keep a namespace alias to avoid breaking project that depend on the
previous namespace name while they get updated.
Done with through the following steps:
- git grep -l dawn_native:: | xargs sed -i "" "s/dawn_native::/dawn::native::/g"
- git grep -l "namespace dawn_native" | xargs sed -i "" "s/namespace dawn_native/namespace dawn::native/g"
- git cl format
- Manual fixups in generator/templates (and the addition of
namespace_case in dawn_json_generator.py).
- The addition of the namespace alias in DawnNative.h
Bug: dawn:824
Change-Id: I676cc4e3ced2e0e4bab32a0d66d7eaf9537e3f09
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/75982
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
But keep a namespace alias to avoid breaking project that depend on the
previous namespace name while they get updated.
Bug: dawn:824
Change-Id: I1e99c4d0d2acf7644a225a88d07806d1a64478e6
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/75540
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
But keep a namespace alias to avoid breaking project that depend on the
previous namespace name while they get updated.
Some TraceEvent.h macro were using "platform" as an argument name so
that was renamed to "platformObj" to avoid conflicting with ::platform::
Bug: dawn:824
Change-Id: Iaf14853f02b0d9fcf866ce87788f87a3fdf8f364
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/75541
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Not all std::tie can be replaced because structured binding introduces
references names and cannot bind member variables.
Bug: dawn:824
Change-Id: Ie2b45834aac72fb063d4aaea5949a53457bc73c9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/75068
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
In previous T2T copy, Dawn requires textures have the same formats. But
Vulkan/Metal/D3D12 have ability to copy between "compatible" formats textures.
Metal has the most restrict rules without setting interpreter flags when creating
textures. It defines "compatible" texture formats to the formats that only have
difference on srgb-ness.
This CL follow Metal's rule and release the validations for T2T copies. It supports
T2T copy between "compatible" texture format textures.
Bug: dawn:1204
Change-Id: I50bf04ea15e8026530b3a5bdb5725f56aa192d85
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/74301
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Shaobo Yan <shaobo.yan@intel.com>
- Add format implementation on D3D12, Metal and Vulkan
- Add more formats in depth/stencil copy, sampling and load op tests and
refactor them to test with parameters.
BUG=dawn:690
Change-Id: I829d1eea3ce35ffb39417ea23fb8afba6d542769
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/73180
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Hao Li <hao.x.li@intel.com>
Fixes / suppresses a couple warnings raised by the updated MSVC and
silences all C++17 deprecation warnings since we can only fix them after
we update to use C++17.
Bug: dawn:824
Change-Id: I047985f26244ed3a42c73740617aee15546ca9dd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/75072
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Loko Kung <lokokung@google.com>
This CL implements RequestDevice and also has changes for
Dawn to internally use wgpu::FeatureName enums, instead of
strings. Some of the string handling is kept for now to
support the deprecated creation path. GetFeatureInfo is added
to the instance to get a name and description of the feature,
for reporting in about://gpu.
Dawn device toggles are now passed in an extension struct off
of the device descriptor. This is only supported in dawn_native,
and not dawn_wire, for now, since dawn_wire doesn't have a way
to serialize lists of null-terminated const char*.
To enable the client to check whether the toggle descriptor is
supported, a `dawn-native` feature is added which is supported
all the time with dawn_native, but not supported with dawn_wire.
Feature `dawn-native` also enables a synchronous version of
CreateDevice for convenience.
Bug: dawn:160
Change-Id: Ifc195e7ea808c6c319021528ef4b36bd65583bff
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/72020
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>
Bug: dawn:689
Change-Id: I032cfcba755be241126dfa8447a38625d7183334
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/71523
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>
This has been removed from WGSL and is now deprecated in Tint.
Bug: tint:1324
Change-Id: Ic187ce3c5ce0723db6f3ca6483e9f5e73ce27acc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/72880
Auto-Submit: James Price <jrprice@google.com>
Reviewed-by: Corentin Wallez <cwallez@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Rename mock_webgpu to mock_api and define the function "GetProcTableAndDevice" to "GetProcTable" for removing the special arguments "WGPUDevice* device" that can be got with "GetNewDevice()".
BUG=dawn:1201
Change-Id: I4fc47e4497ba4b6d280cc8af8605f1d93f43497e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/72761
Reviewed-by: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Junwei Fu <junwei.fu@intel.com>
Struct member defined in dawn.json could have a 'length' attribute
defines the length of the member if it is an array.
In previous, the 'length' could only be 'strlen' or other variable
which has 'uint32_t' types. It cannot support constant length.
CopyTextureForBrowserOptions transfers conversion parameters and
conversion matrix with a constant length. This CL adds this ability
to meet such requirements.
Bug: dawn:1140
Change-Id: I6eeabbc55cc3853fe15e33bdd44060b16f6096bf
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/72580
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Shaobo Yan <shaobo.yan@intel.com>
This is so we can implement the adapter/device APIs fully
on dawn_wire.
Bug: dawn:689
Change-Id: I47f68157d081f359f871e0efe0d974dfe53de7d7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/71521
Reviewed-by: Loko Kung <lokokung@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Adds upstream instance/adapter APIs. In dawn_native, the basic APIs
to get limits and properties are implemented, but requestAdapter and
requestDevice are not. In dawn_wire, nothing is implemented, but the
stub definitions are put in place, as well the mechanism to inject
WGPUInstance into the wire.
There is a lifetime concern with WGPUInstance and WGPUAdapter on the
wire in that we need to ensure that the client cannot free the
instance or adapter while they are in use. In the near term, this is
not a problem because Chromium will always hold ownership of the
instance and adapters outside of the wire - i.e. it won't inject and
then release ownership.
Bug: dawn:160, dawn:689
Change-Id: Id904272983f23babc9177bc163d78c4fa1044da0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/71520
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>
This CL add color space conversion bases for CopyTextureForBrowser.
Theoretically, it could support any color space conversion. But
test cases only cover (Srgb, DisplayP3) to (Srgb).
It could be expanded to more color spaces conversions.
Bug: dawn:1140
Change-Id: I332e6d1f7cf2424fd5f5af83c71fa45c98d2d8ac
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/70780
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Shaobo Yan <shaobo.yan@intel.com>
In RenderPipelineDescriptor.DepthStencilState, if depth test or depth
write is enabled, the texture format must have depth aspect. Likewise,
if stencil test or stencil write is enabled, the texture format must
have stencil aspect.
Bug: dawn:1226
Change-Id: I9d7efb25675ff2c90704fa45703fb542bab6f1f5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/72101
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Updates validation logic to match the recent changes in
https://github.com/gpuweb/gpuweb/pull/2385 that allows stripIndexFormat
to be undefined at pipeline creation time, even for strip topologies.
Non indexed draw calls are valid with such pipelines. Indexed draw calls
fail validation at draw time.
Bug: dawn:1224
Change-Id: I28ff78eac726d46f99a099ffb2338b5da81a4a88
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/72000
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Brandon Jones <bajones@chromium.org>
The EnumClassBitmasks is used by dawn/api_cpp.h that needs to be common.
Define a macro to export the operators from dawn to other various namespace.
BUG=dawn:1201
Change-Id: I20badd54e844fead6ecf12546a2c9e0afa2fd83f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/71900
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Junwei Fu <junwei.fu@intel.com>
This brings more type safety to the code and is marginally more
readable.
Bug: None
Change-Id: I0330a8a8e95cd9b8b531af266acd8fdc50c50460
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/71606
Reviewed-by: Brandon Jones <bajones@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Validate the storage texture views have a miplevel of 1 when creating
bind group. This validation is added in
https://github.com/gpuweb/gpuweb/pull/2285.
Also fix a bug in unittest BindGroupValidationTest.TextureBindingType.
Bug: dawn:1212
Change-Id: If32400ed1e4f3049b8b8979e6e6133bada36b45c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/71380
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
- Update block size of depth/stencil formats in TextureUtils.h
- Allow to copy depth aspect for Depth32FloatStencil8 and disallow it
for Depth24UnormStencil8 in copyTextureToBuffer()
- Add Depth24UnormStencil8, Depth32FloatStencil8 and other depth/stencil
formats in CopyCommandsValidationTests.
Bug=dawn:690
Change-Id: I3f645b838b8a8cdafe0880bbd1e4e8d17d994510
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/71400
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Hao Li <hao.x.li@intel.com>
- Fixes all class and implementations to call upwards when necessary.
- Makes DestroyImpl full virtual at ApiObjectBase.
- Fixes mock classes to call default DestroyImpl upwards on mock calls.
- Adds back D3D12 optimization for buffer destruction.
Bug: dawn:628, dawn:1189
Change-Id: Id2c2c6483dc7ed93daf8e4648af26ac1307e3d90
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/71243
Commit-Queue: Loko Kung <lokokung@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
The depth240unorm-stencil8 and depth32float-stencil8 are optional
features. Enable them and add validation tests for texture creation
and texture view creation.
They are unimplmented on backends, skip their end2end tests.
TODO: add validtion for copy commands.
BUG=dawn:690
Change-Id: I980631d2f3fa6397a6125221a76980a15c8cb2f5
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/68220
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Hao Li <hao.x.li@intel.com>
This is preventing supporting DeviceDescriptor from upstream
webgpu.h because the name conflicts with the existing struct.
A typedef using the original name DeviceDescriptor is added
until all embedders of Dawn are updated to use the new name.
Bug: dawn:160, dawn:689
Change-Id: Ib9cb7443b7e46e3ffe29d2ec109f2f1a831754e7
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/70581
Reviewed-by: Brandon Jones <bajones@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Adds label tracking for:
- CommandBuffer
- CommandEncoder
- ComputePassEncoder
- RenderBundleEncoder
- RenderPassEncoder
It's not clear to me if these structures have labelable equivalents in
D3D12 or Vulkan, so no changes were made to the individual backends.
Bug: dawn:840
Change-Id: Ib1786ab45466a3d13fbd4c772f8e8af4cc1786af
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/70400
Commit-Queue: Brandon Jones <bajones@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Adds label tracking for:
- BindGroup
- BindGroupLayout
- PipelineLayout
- TextureView
- ExternalTexture
- Sampler
- QuerySet
Labels are passed to Vulkan and D3D12 where applicable, though many of
the related structures don't appear to be labelable objects in D3D12.
Bug: dawn:840
Change-Id: Ic7073dc9c02c9fb05bb46f2f8a84e575d5ba5c16
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/70180
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Brandon Jones <bajones@chromium.org>
D3D12 doesn't have native pipeline constants feature.
This is done by using #define. Add some new tests to make
sure these define approaches work as expected.
Also makes duplicate pipeline constant entries an invalid
case.
Bug: dawn:1137
Change-Id: Iefed44a749625b535bbafbb39f42699f0b42e06a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/68860
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Shrek Shao <shrekshao@google.com>
Found while investigating Swiftshader support. Some Vulkan loaders
fail to create an instance if VK_ICD_FILENAMES is empty string
rather than entirely absent. It was set to empty string because
Dawn did not distinguish between nonexistent environment variables
and the empty string. This CL adds distinguishing between the two,
including tests for the behavior.
Bug: chromium:1266550
Change-Id: I1680a281f62e6b340009e01da65db9d485e2975e
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/69520
Auto-Submit: Austin Eng <enga@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>
- Renames ProgrammablePassEncoder to just ProgrammableEncoder since it is also used in RenderBundleEncoder which is not a "pass"
- Adds testing infrastructure to further test device errors
- Ensures AttachmentStates are de-reffed when encoder objects are destroyed for proper cleanup
- Makes sure that both encoded and partial encoded commands are freed at destruction
Bug: dawn:628
Change-Id: Id62ab02d54461c4da266963035e8666799f61e9a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/68461
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Loko Kung <lokokung@google.com>
This adds overloads for WireCmd [De]serialization that don't take the
object id provider/resolvers and produce a fatal error as soon as an
object is encountered.
Bug: dawn:1186
Change-Id: I13e796a5d8f59c26279b9079d4496390506c739a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/68941
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Loko Kung <lokokung@google.com>
Remove deprecated usage of size=0 as default size in setIndexBuffer and
setVertexBuffer. Using size=0 now result in a zero-size binding instead
of default size.
Bug: dawn:1058
Change-Id: I2ef0afc8d8826aa87a17c037d4dd1baf14e09f89
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/67744
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
In this patch the deprecated usage of size=0 as default size is removed.
Using size=0 in buffer.mapAsync now result in a zero size mapping,
instead of the default size.
Bug: dawn:1159
Change-Id: Ie8badc5eb7440980d0df3d3d27867e710e77f44b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/67743
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Zhaoming Jiang <zhaoming.jiang@intel.com>
- Also updates and adds tests for CommandBuffer since it is the last object with a Destroy name clash.
Bug: dawn:628
Change-Id: I028e0101a91a785aa90d2b656556d48fe0d6e736
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/68101
Commit-Queue: Loko Kung <lokokung@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Bug: dawn:628
Change-Id: Iaaa62507592e12a724673a0226783c0425b04f35
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/67601
Commit-Queue: Loko Kung <lokokung@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
If the texture attachment doesn't have a stencil aspect, we can
set stencilReadOnly flag in RenderPassDepthStencilAttachment as
we want. And it is totally ignored and it doesn't impact whether
the depth/stencil attachment is readonly or not.
That's true for depthReadOnly flag upon a stecil-only format like
stencil8, but we haven't support stencil8 yet.
Bug: dawn:485
Change-Id: If0a21250ce7cc7a1ad9cc17a05ecf64d05342cd0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/67962
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
The changes should pass through the destroy changes such that when the device is destroyed, the respective destroy functionality currently existing in the backends should be called.
For buffers, destroy no longer causes validation errors since even error buffers may need to be destroyed in the case of mappedAtCreation.
Bug: dawn:628, dawn:1002
Change-Id: I42a475af5d67cc60f86d95ac53c2b377a9fd2e82
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/65863
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Loko Kung <lokokung@google.com>
This is a reland of 9901c710d1f834fd3e98356f0842553e1ac4afb2
Original change's description:
> Adds destroy handling for simple objects without new backend changes yet.
>
> Simple objects are defined here as objects that do not already have a destroy or destroy-like API available. They include:
> - BindGroups
> - ComputePipelines
> - PipelineLayouts
> - RenderPipelines
> - Samplers
> - ShaderModules
> - SwapChains
>
> Changes include:
> - Adds necessary constructors for testing and caching
> - Adding mock objects, mock constructors, and tests
>
> Bug: dawn:628
> Change-Id: I26a5e37bc5580b9064db299a75ef1243521b266a
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/65864
> Commit-Queue: Loko Kung <lokokung@google.com>
> Reviewed-by: Austin Eng <enga@chromium.org>
Bug: dawn:628
Change-Id: I19492ad6b1660e205d123b2d1fdf53c772564cfe
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/67961
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Loko Kung <lokokung@google.com>
This reverts commit 9901c710d1f834fd3e98356f0842553e1ac4afb2.
Reason for revert: Breaking dawn roll due to include in ShaderMock
Original change's description:
> Adds destroy handling for simple objects without new backend changes yet.
>
> Simple objects are defined here as objects that do not already have a destroy or destroy-like API available. They include:
> - BindGroups
> - ComputePipelines
> - PipelineLayouts
> - RenderPipelines
> - Samplers
> - ShaderModules
> - SwapChains
>
> Changes include:
> - Adds necessary constructors for testing and caching
> - Adding mock objects, mock constructors, and tests
>
> Bug: dawn:628
> Change-Id: I26a5e37bc5580b9064db299a75ef1243521b266a
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/65864
> Commit-Queue: Loko Kung <lokokung@google.com>
> Reviewed-by: Austin Eng <enga@chromium.org>
# Not skipping CQ checks because original CL landed > 1 day ago.
Bug: dawn:628
Change-Id: Ic727106f3dc701dc25418adf9824fbc5397aa656
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/67960
Reviewed-by: Loko Kung <lokokung@google.com>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Loko Kung <lokokung@google.com>
