servo: Merge #19820 - Run servo-warc-tests as part of test-perf (from asajeffrey:test-perf-run-warc-tests); r=jdm

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Run the servo-warc-tests as part of performance testing.

Depends on https://github.com/servo/servo-warc-tests/pull/1

---
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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes do not require tests because this is adding more test infrastructure

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Source-Repo: https://github.com/servo/servo
Source-Revision: 2024ef56b00d4fce0c173f4d47474d97d767379d

--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 4398dd8ef8162dade4a0404b091e207cc9a2e814

servo/etc/ci/performance/.gitignore

@@ -4,6 +4,7 @@ output/*
 .cache/*
 page_load_test/tp5n/*
 page_load_test/tp5n.zip
+servo-warc-tests/*
 venv/*
 
 __pycache__/

servo/etc/ci/performance/test_perf.sh

@@ -26,13 +26,27 @@ else
     echo "Found existing test cases, skipping download and unzip."
 fi
 
+WARC_DIR="./servo-warc-tests"
+WARC_REPO="git@github.com:servo/servo-warc-tests.git"
+
+# Clone the warc tests if they don't exist
+if [[ ! -d ${WARC_DIR} ]]; then
+    git clone ${WARC_REPO}
+fi
+
+# Make sure we're running with an up-to-date warc test repo
+git -C ${WARC_DIR} pull
+
 virtualenv venv --python="$(which python3)"
 PS1="" source venv/bin/activate
 # `PS1` must be defined before activating virtualenv
-pip install "boto3>=1.4.0"
+pip install \
+    "boto3>=1.4.0" \
+    git+https://github.com/ikreymer/pywb.git
 
 mkdir -p servo
 mkdir -p output # Test result will be saved to output/perf-<timestamp>.json
 ./git_log_to_json.sh > servo/revision.json
 
 ./test_all.sh --servo ${*}
+SERVO_DIR="../../.." ${WARC_DIR}/run-warc-tests.sh