Roll third_party/externals/dawn e8bf706d161d..70ffa0c28561 (7 commits)

https://dawn.googlesource.com/dawn.git/+log/e8bf706d161d..70ffa0c28561

git log e8bf706d161d..70ffa0c28561 --date=short --first-parent --format='%ad %ae %s'
2020-05-07 [email protected] Add more tests for resource usage tracking
2020-05-07 [email protected] Refactor Serial tracking to be owned by Device frontend.
2020-05-07 [email protected] Add Tint to BUILD.gn
2020-05-07 [email protected] Revert "Support depth32float sampling on D3D12"
2020-05-07 [email protected] Add missing include in DawnWireServerAndFrontendFuzzer.cpp
2020-05-07 [email protected] Add tests for texture usage tracking - 3
2020-05-07 [email protected] Support depth32float sampling on D3D12

Also rolling transitive DEPS:
  https://chromium.googlesource.com/chromium/src/third_party/jinja2 b41863e42637..b41863e42637
  https://chromium.googlesource.com/chromium/src/third_party/markupsafe 8f45f5cfa000..8f45f5cfa000
  https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang b5f003d7a3ec..b5f003d7a3ec
  https://chromium.googlesource.com/external/github.com/google/shaderc 15a66d72f33a..15a66d72f33a

Created with:
  gclient setdep -r third_party/externals/dawn@70ffa0c28561

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 [email protected] 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/+/master/autoroll/README.md

Bug: None
Tbr: [email protected]
Change-Id: I510bacd20f4e8dec7bb4b5dbbc137c17e815ca59
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/288673
Reviewed-by: skia-autoroll <[email protected]>
Commit-Queue: skia-autoroll <[email protected]>

Author: skia-autoroll

DEPS

@@ -10,7 +10,7 @@ deps = {
   "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@101da7573691324784d5c4f1b7c77e0b73839f99",
   # Dawn requires jinja2 and markupsafe for the code generator, and glslang and shaderc 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@e8bf706d161d018765ed49c9704cda6eb345c70c",
+  "third_party/externals/dawn"            : "https://dawn.googlesource.com/dawn.git@70ffa0c28561c35ed6ba1e98f42f5a38e3c6f57b",
   "third_party/externals/glslang"         : "https://chromium.googlesource.com/external/github.com/KhronosGroup/glslang@b5f003d7a3ece37db45578a8a3140b370036fc64",
   "third_party/externals/jinja2"          : "https://chromium.googlesource.com/chromium/src/third_party/jinja2@b41863e42637544c2941b574c7877d3e1f663e25",
   "third_party/externals/markupsafe"      : "https://chromium.googlesource.com/chromium/src/third_party/markupsafe@8f45f5cfa0009d2a70589bcda0349b8cb2b72783",