[COIL] Change chromium code search type links to use main rather than master for docs

    See this doc: go/chromium-coil-change for more info
    BUG=1210385

Change-Id: I6cd8548301e360bae8e71384dbd8ef11aa6c985f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2902904
Reviewed-by: My Nguyen <[email protected]>
Commit-Queue: My Nguyen <[email protected]>
Auto-Submit: John Palmer <[email protected]>
Cr-Commit-Position: refs/heads/master@{#885851}
diff --git a/docs/memory-infra/memory_benchmarks.md b/docs/memory-infra/memory_benchmarks.md
index a61bc57..4e8346b 100644
--- a/docs/memory-infra/memory_benchmarks.md
+++ b/docs/memory-infra/memory_benchmarks.md
@@ -38,7 +38,7 @@
 collecting and reporting results on the
 [Chrome Performance Dashboard][chromeperf].
 
-[system_health]: https://chromium.googlesource.com/chromium/src/+/master/tools/perf/page_sets/system_health/
+[system_health]: https://chromium.googlesource.com/chromium/src/+/main/tools/perf/page_sets/system_health/
 [chrome.perf]: https://ci.chromium.org/p/chrome/g/chrome.perf/console
 [chromeperf]: https://chromeperf.appspot.com/report