[Benchmarking] Replace myself as owner.

tools/perf/OWNERS: John is now TL and primary reviewer.

update_wpr: John will review these.

media_cases: John and I aren't on this team anymore.

Change-Id: I95a11c1bb62e74670142a2b30def3884e4f9acbc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2120749
Auto-Submit: Caleb Rouleau <crouleau@chromium.org>
Reviewed-by: John Chen <johnchen@chromium.org>
Commit-Queue: John Chen <johnchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#753342}

tools/perf/OWNERS

 # Overall OWNERS
-crouleau@chromium.org
+johnchen@chromium.org
 wenbinzhang@google.com
-johnchen@chromium.org  # Backup reviewer for when overall OWNERS are OOO.
 
 # For gtest perf tests, perf data upload, and functional tests
 bsheedy@chromium.org

tools/perf/cli_tools/update_wpr/update_wpr.py

@@ -36,7 +36,7 @@ HISTOGRAM2CSV = os.path.join(
 RUN_BENCHMARK = os.path.join(SRC_ROOT, 'tools', 'perf', 'run_benchmark')
 DATA_DIR = os.path.join(SRC_ROOT, 'tools', 'perf', 'page_sets', 'data')
 RECORD_WPR = os.path.join(SRC_ROOT, 'tools', 'perf', 'record_wpr')
-DEFAULT_REVIEWERS = ['crouleau@chromium.org']
+DEFAULT_REVIEWERS = ['johnchen@chromium.org']
 MISSING_RESOURCE_RE = re.compile(
     r'\[network\]: Failed to load resource: the server responded with a status '
     r'of 404 \(\) ([^\s]+)')

tools/perf/page_sets/media_cases/OWNERS

-crouleau@chromium.org
-johnchen@chromium.org
 dalecurtis@chromium.org