Move kokoro dir under infra

Relabel a bunch of things as Dawn instead of Tint.

Also adjust the tools/lint to only lint Tint.
- It doesn't like Dawn code much.

Bug: dawn:1339
Change-Id: Iab224cfbea2314f9e06fe71f8d75d825bc483c43
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/86066
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>

infra/kokoro/linux/cmake-clang-debug-ubsan/build.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Copyright 2021 The Tint and Dawn Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -e # Fail on any error.
+
+SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}")" >/dev/null 2>&1 && pwd )"
+
+export BUILD_SYSTEM=cmake
+export BUILD_TOOLCHAIN=clang
+export BUILD_TYPE=Debug
+export BUILD_SANITIZER=ubsan
+
+${SCRIPT_DIR}/../build.sh

infra/kokoro/linux/cmake-clang-debug-ubsan/presubmit.cfg

@@ -0,0 +1,3 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+build_file: "dawn/infra/kokoro/linux/cmake-clang-debug-ubsan/build.sh"