When the fuzzer passes the command DeviceLoseForTesting, the
DawnWireServerFuzzer will hang forever when waiting for a fence signal
because the device was lost. This commit sets a callback on device loss
which gives an extra condition to break the hang.
Bug: dawn:444
Change-Id: I0157358ed6da39cc6fcab7e1be8a3d5fde74266f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/23141
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Natasha Lee <natlee@microsoft.com>
Commit-Queue: Brandon Jones <brandon1.jones@intel.com>
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>
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>
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>
This file was missing an include of libfuzzer_exports.h which was
causing LLVMFuzzerInitialize to be stripped from the binary.
Tbr=cwallez@chromium.org
Bug: chromium:1075605
Change-Id: I251e3dd7ad1b3ebb95339dec946b80ce2e5d4a05
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/21301
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
It also changes remaining deps for internal targets
from libdawn_proc to dawn_proc.
Bug: chromium:1064305
Change-Id: I36df2b5d7793be9d6c878b6a1f2ec238603a8205
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19289
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
The basic change was to copy-paste targets in the new BUILD.gn files and
fixup paths / add includes. There's a couple more changes that had to be
done at the same time:
- Multiple files need to know if GLFW is supported so the variable was
moved to dawn_features.gni.
- The gtest_and_gmock target used to abstract between Dawn's copy of
GTest/GMock is only needed by tests and was moved in src/tests/BUILD.gn.
- A leftover dawn_end2end_tests target is left in the main BUILD.gn
file that is an exact copy of the on in src/tests/BUILD.gn. This is
because the GN path is hardcoded in Chromium's isolate_map.pyl that also
can't support GN groups. The only way to move a target I could figure
out was to duplicate it temporarily.
Bug: chromium:1064305
Change-Id: I96820e9d6510b8c9b9112c3e6cd8df2413f04287
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/19201
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
This helps take advantage of the GN feature where when a directory is
used as a target name, like //foo/bar/baz, the //foo/bar/baz:baz target
is used automatically.
Bug: chromium:1064305
Change-Id: I2e2d9f308fda1b811482026962ab0770ac45e988
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18862
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This will help external projects that want to use Dawn, like Skia, refer
to GN targets without GN discovering Dawn's main BUILD.gn file that
causes all the tests and third_party dependencies to be discovered.
This CL just splits off chunks of BUILD.gn into separate file, adds
necessary includes and fixes up GN paths. It also introduces temporary
groups for targets that are used in Chromium so that the paths can be
fixed in a 3-way patch.
Bug: chromium:1064305
Change-Id: Ib4b73bd8d3121ef67d4ecee2e54ec158875f2117
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18861
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
The shader with uninitialized variables will fail to compile on D3D12
backend. SPIRV-Cross has added an option for supporting forcefully
zero-initialized variables in latest version.
Bug: dawn:347
Change-Id: Id02fa486317c583ee11cfe3bc382816dc34121fb
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/18680
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Some dawn_unittests crash on some configurations because the
uninitialized |label| member crashed string serialization.
Default initialize all descriptors to avoid this problem.
Bug: none
Change-Id: I6ea1851ebb6f54690a28ba396e0beaa85d8670cc
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/16260
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@google.com>
Commit-Queue: Austin Eng <enga@chromium.org>
This commit fixes two problems:
1) It includes testing/libfuzzer/libfuzzer_exports.h which exports
the LLVMFuzzerInitialize symbol. On Mac, not doing so causes it
to be removed by the linker.
2) It makes it so that dawn_use_swiftshader is enabled by default
when fuzzing, and enabling swiftshader also enables the Vulkan
backend.
Bug: chromium:1042426
Change-Id: Ic0ae0d59c91476b0079148f33a4b1ebd1cc6743c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/15462
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Kai Ninomiya <kainino@chromium.org>
This commit changes wgpu::Device::CreateSwapChain to take an additional
wgpu::Surface argument. Passing nullptr is enough to stay on the
previous swapchain implementation, until the new one is ready.
In order to support both the "old" implementation-based swapchains and
the "new" surface-based swapchains. SwapChainBase is now split into
three abstract classes:
- SwapChainBase that has a virtual method for each of the
wgpu::SwapChain methods.
- OldSwapChainBase that corresponds to the implementation-based
swapchains.
- NewSwapChainBase that will contain the surface-based swapchain
implementation and will eventually just be renamed to SwapChainBase.
The interaction of the surface-based swapchains with the Surface objects
aren't implemented yet, neither are the swapchain methods. Only creation
works.
Validation tests for surface-based swapchain creation are added in the
end2end test target because they need to create OS windows.
Bug: dawn:269
Change-Id: I7e07d6c666479867b9a16d7b1b8c181d5dbd69a0
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/15281
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
The dawn_native::Adapter::GetPCIInfo/GetBackendType/GetDeviceType
methods are now deprecated in favor of a method returning a webgpu.h
AdapterProperties structure. Deprecated function are still available to
avoid breaking Chromium or Skia compilation.
This reduces the difference between dawn.json and webgpu.h
BUG=dawn:160
Change-Id: Ib68fe1c4d1d87676c01c212c91f80fdd26056c56
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14541
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This patch moves Instance initialization and adapter discovery so that
it is done once globally, and not for every fuzz input. This is to work
around a bug where destructing the instance at the end of a run breaks
when fuzzing with Swiftshader.
Bug: dawn:295, chromium:1038952
Change-Id: Iabfe178f40b9df85d47a6353f16cd2ef26f39966
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14822
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This is a reland of f58f69f66b
The whitebox dawn_end2end_tests are updated to link statically against
libdawn_native. This is required because the test link against and use
libdawn_native as sources. It is an error with MSVC to both import and
export symbols from libdawn_native.
Original change's description:
> fuzzing: Add supportsErrorInjection option to DawnWireServerFuzzer
>
> This option will be used by backends that support error injection so
> that errors can be injected into a "clean" corpus to generate a seed
> corpus with good examples of injected error conditions.
>
> Bug: dawn:295
> Change-Id: I837acdde6dd4274adb56edf8e4307427f8d6333b
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14681
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Commit-Queue: Austin Eng <enga@chromium.org>
Bug: dawn:295
Change-Id: Ifa092d28aa7ac57cfb197aa4daeb8408f8036d4a
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14820
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This reverts commit f58f69f66b.
Reason for revert: This breaks the MSVC build because the whitebox end2end tests try to both import and export the error injector symbols from libdawn_native
Original change's description:
> fuzzing: Add supportsErrorInjection option to DawnWireServerFuzzer
>
> This option will be used by backends that support error injection so
> that errors can be injected into a "clean" corpus to generate a seed
> corpus with good examples of injected error conditions.
>
> Bug: dawn:295
> Change-Id: I837acdde6dd4274adb56edf8e4307427f8d6333b
> Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14681
> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
> Commit-Queue: Austin Eng <enga@chromium.org>
TBR=cwallez@chromium.org,kainino@chromium.org,enga@chromium.org
Change-Id: I14a15fcd094d431cbb8a29d5642a4a7fe6a11f4c
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: dawn:295
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14741
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This option will be used by backends that support error injection so
that errors can be injected into a "clean" corpus to generate a seed
corpus with good examples of injected error conditions.
Bug: dawn:295
Change-Id: I837acdde6dd4274adb56edf8e4307427f8d6333b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14681
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
This will make it easier to bring up other Dawn backend fuzzers
that don't use the Null backend.
Bug: dawn:295
Change-Id: I176b937722a63509cab620ac2a90098d87a6049c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14623
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
Change-Id: I9dc598f7d929595d674b5a5916e5b00e46e85559
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14502
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Sarah Mashayekhi <sarahmashay@google.com>
This is the first step for having a fully operational SPVC usage
path. This version of SPVC integration uses SPVC for setting up the
options to the compiler, but a lot of the actual interaction with
spirv-cross is done in Dawn, just via SPVC's compiler object.
Future CLs will migrate more of the spirv-cross interaction to using
the SPVC API, eventually removing the need for Dawn to know about
spirv-cross.
BUG=dawn:288
Change-Id: I68e0773f910d7fe967235b6987b3debe1d13883f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14143
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Roll third_party/shaderc/ 24536bdd3..1d6155d86 (1 commit)
24536bdd3c..1d6155d867
$ git log 24536bdd3..1d6155d86 --date=short --no-merges --format='%ad %ae %s'
2019-11-27 rharrison Moving spirv-cross dep from Dawn into shaderc (#911)
Created with:
roll-dep third_party/shaderc
BUG=dawn:285
Change-Id: I47d202166f9e34c88e7aad75d6a3c8aa9a7d6499
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14120
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Disabling this while refactoring how dependencies are set up to avoid
breaking various builds and rolls.
BUG=dawn:285
Change-Id: Iaca2614fb73277a1ea850f90a487693cd4c54fcb
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/14040
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Subtle change to how results are handled requiring another change.
Rolling DEPS ahead to pick up change.
Roll third_party/shaderc/ 76ee91e12..f4cf10c66 (4 commits)
76ee91e126..f4cf10c66f
$ git log 76ee91e12..f4cf10c66 --date=short --no-merges --format='%ad %ae %s'
2019-11-11 rharrison Correct Unicode issue with add_copyright.py (#876)
2019-11-08 rharrison Another major API rework (#871)
2019-11-07 rharrison Remove deprecated API elements (#870)
2019-11-07 9856269+sarahM0 Add support and unit test for OpTypeInt, OpTypePointer and OpConstant (#872)
Created with:
roll-dep third_party/shaderc
Change-Id: Ic461c3ec135d2c73ebadede62fb34c90e7961eda
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13380
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Due to a renaming/refactoring of the spvc API Dawn is currently using
a deprecated class name. Fixing this, so the deprecated APIs can be
removed.
Also including the roll to pick up the API changes.
Roll third_party/shaderc/ 0a260d789..76ee91e12 (7 commits)
0a260d789f..76ee91e126
$ git log 0a260d789..76ee91e12 --date=short --no-merges --format='%ad %ae %s'
2019-11-06 9856269+sarahM0 Fix spvc test machanism and adds unit tests for OpSource (#868)
2019-11-06 rharrison Move spirv_cross state out of result and rename opaque state handle (#865)
2019-11-05 9856269+sarahM0 Add unit test for spvcir parser (#866)
2019-11-04 rharrison Rolling 5 dependencies (#862)
2019-11-04 9856269+sarahM0 Add --emit-line-drective option (#861)
2019-11-01 9856269+sarahM0 Add spvcir unit test - OpCapability (#857)
2019-11-01 rharrison Add flag for updating invalid expecations and rewrite end logic (#856)
Created with:
roll-dep third_party/shaderc
Change-Id: I81649618da6753657ef5a7533785559c2a13c416
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/13180
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
The functionality of the dawn_headers and libdawn targets are split into
the following targets:
- dawn_headers: the new version only exposes the "dawn.h" C API and no
longer includes the C++ API.
- dawncpp: the header and implementation of the C++ API that wraps the
C API. This is unbundled from the rest so the C++ API can be used
with libdawn_proc or other libraries implementing the C API.
- libdawn_proc: A DawnProcTable-backend implementation of the C API.
This is needed because in follow-up commit there will be three libraries
implementing the C API: libdawn_proc that trampolines where we want, and
libdawn_native/wire that don't have trampolines for better perf.
BUG=dawn:22
Change-Id: I5d941f0d98e5a4b633e14d67eb5269f7924f0647
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/12160
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
This CL adds missing optional label members to all descriptors. It is
not used yet but needed from the WebGPU side.
Bug: dawn:22
Change-Id: I103870f9207eed8168bc2245294888af4e1edd9f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/11720
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This patch adds MemoryTransfer client/server interfaces and
uses it to implement data transfers for buffer mapping.
This patch also provides a default "inline" implementation of
the MemoryTransfer which is used if the embedder does not
provide one on initialization.
Because implementations of MemoryTransfer perform their own
serialization, a skip_serialize option is added to WireCmd records.
Bug: dawn:156
Change-Id: I2fa035517628a3ad465b0bc18a6ffc477e2bd67f
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/8642
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>
When pipeline topology is set to Point_List, PointSize must be written
in vertex shader for Vulkan backend.
BUG=dawn:146
Change-Id: Id5aac73bb7e60646503f1ea06c2aa0d39c8384b3
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/7820
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
The currently used method, SetShaderModel has been deprecated in
favour of SetHLSLShaderModel. This CL migrates Dawn, so that the
deprecated method can be removed from upstream.
BUG=chromium:976798
Change-Id: Id1e655b77291179dd6e15f1a85c8664f07cf8396
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/8220
Commit-Queue: Ryan Harrison <rharrison@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Function name changed in shaderc.
SPIRV-Cross split up into additional files.
BUG=chromium:951016
Change-Id: I49abb0a163fefdd61b7d6352e57e2a10f519abd9
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/6440
Reviewed-by: Frank Henigman <fjhenigman@chromium.org>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
The range of the Z-coordinate in clipping volume is [-w, w] on OpenGL,
while it is [0, w] on D3D12, Metal and Vulkan.
In this patch, the "fixup_clipspace" flag of SPIRV-Cross is enabled on
OpenGL backend and disabled on D3D12 backend to unify the behaviour of
clip space on all Dawn backends. An end2end test is also added for this
fix.
This patch also fix a bug when clearing depth stencil attachments on
OpenGL backend. Before clearing depth stencil attachments, we should
enable depth stencil writing by properly setting depth and stencil
masks. We do not need to set the depth and stencil masks back because
they will be set again when applying the render pipeline. The newly
added test will fail without this fix when running the test together
with all the end2ends.
BUG=dawn:122
TEST=dawn_end2end_tests
Change-Id: I4f50ce3eb1f16d731ee4cffc12a56e17844b4675
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/5860
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.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 adds an option to dawn_generator to generate files in a different
directory so the generated stay at the same place. Otherwise compilation
errors occur because of stale versions of the headers on the CQ
builders.
BUG=dawn:61
Change-Id: I71ceb3172b5a4e35911973a03be29d90fa684416
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/5304
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This also makes SwapChain support WebGPU-style error handling.
BUG=dawn:8
Change-Id: I5a142ae58600445f0f44f6dbe419cb7c3cdc9464
Reviewed-on: https://dawn-review.googlesource.com/c/4660
Reviewed-by: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This creates proper Client and Server interfaces which will be necessary
for adding additional features to the Wire for chrome integration
Bug: dawn:103
Change-Id: I181e95079b0bac85c2c6152ad8066a94b80c8d28
Reviewed-on: https://dawn-review.googlesource.com/c/4002
Commit-Queue: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
BUG=dawn:95
Change-Id: I0fedb7b068de39c41b1b1d8aa2b42a96fdb584fb
Reviewed-on: https://dawn-review.googlesource.com/c/4140
Commit-Queue: Frank Henigman <fjhenigman@chromium.org>
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Chromium will want to have both static and shared library versions of
Dawn to use in non-component and component builds respectively.
The *_export.h files are modified to noop when *_SHARED_LIBRARY is not
defined so that the static library doesn't export symbols that aren't
imported in dependents (this would break compilation on Windows).
A dawn_library_combo is introduced in BUILD.gn that factors out all the
logic needed to produce shared libraries and handle the _EXPORT macros.
Also contains a fix to dawncpp to export only the methods that aren't
defined in the header (otherwise they get defined multiple times)
BUG=dawn:85
Change-Id: Ib747deb9308e1165dd66002487147ba279d3eac0
Reviewed-on: https://dawn-review.googlesource.com/c/3761
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Otherwise the Device might fire callbacks when it is destroyed,
causing use-after-frees on the wire server.
BUG=chromium:914620
BUG=chromium:914615
Change-Id: Ic47b219b4ebe2eb5abd525741c0ff1180282c87d
Reviewed-on: https://dawn-review.googlesource.com/c/3322
Reviewed-by: Stephen White <senorblanco@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>