Roll Dawn from b7c7f62829b0 to 7e874a1c096e (2 revisions)

https://dawn.googlesource.com/dawn.git/+log/b7c7f62829b0..7e874a1c096e

2021-07-31 dawn-autoroll@skia-public.iam.gserviceaccount.com Roll Tint from 2c1fbe801b3a to b209c477db71 (5 revisions)
2021-07-30 dawn-autoroll@skia-public.iam.gserviceaccount.com Roll Tint from 1f0200a3fffc to 2c1fbe801b3a (19 revisions)

Also rolling transitive DEPS:
  https://dawn.googlesource.com/tint from 1f0200a3fffc to b209c477db71

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dawn-skia-autoroll
Please CC bclayton@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/+doc/main/autoroll/README.md

Cq-Include-Trybots: skia/skia.primary:Build-Debian10-Clang-x86_64-Debug-Dawn
Bug: None
Tbr: bclayton@google.com
Change-Id: Ia4aefe5d74ce50e8d2506f4da628b804a46ed5d6
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/435576
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index dd05489..c0332e5 100644
--- a/DEPS
+++ b/DEPS
@@ -16,10 +16,10 @@
   "third_party/externals/d3d12allocator"  : "https://skia.googlesource.com/external/github.com/GPUOpen-LibrariesAndSDKs/D3D12MemoryAllocator.git@169895d529dfce00390a20e69c2f516066fe7a3b",
   # Dawn requires jinja2 and markupsafe for the code generator, and tint for SPIRV compilation.
   # When the Dawn revision is updated these should be updated from the Dawn DEPS as well.
-  "third_party/externals/dawn"            : "https://dawn.googlesource.com/dawn.git@b7c7f62829b0ed8297d5f35539c862d94d098a64",
+  "third_party/externals/dawn"            : "https://dawn.googlesource.com/dawn.git@7e874a1c096e8280c8451b454de35432899c0d9c",
   "third_party/externals/jinja2"          : "https://chromium.googlesource.com/chromium/src/third_party/jinja2@a82a4944a7f2496639f34a89c9923be5908b80aa",
   "third_party/externals/markupsafe"      : "https://chromium.googlesource.com/chromium/src/third_party/markupsafe@0944e71f4b2cb9a871bcbe353f95e889b64a611a",
-  "third_party/externals/tint"            : "https://dawn.googlesource.com/tint@1f0200a3fffc6d8b05198f5740ba697cf10d4803",
+  "third_party/externals/tint"            : "https://dawn.googlesource.com/tint@b209c477db7155ba8b4068dfc9e25c6ee3a5c423",
   "third_party/externals/dng_sdk"         : "https://android.googlesource.com/platform/external/dng_sdk.git@c8d0c9b1d16bfda56f15165d39e0ffa360a11123",
   "third_party/externals/egl-registry"    : "https://skia.googlesource.com/external/github.com/KhronosGroup/EGL-Registry@a0bca08de07c7d7651047bedc0b653cfaaa4f2ae",
   "third_party/externals/expat"           : "https://chromium.googlesource.com/external/github.com/libexpat/libexpat.git@a28238bdeebc087071777001245df1876a11f5ee",