Merge https://chromium.googlesource.com/chromium/blink/+/b8a17dc0cabc3f77518a42b81bcbfd0dc304fae9 This is a sanitized version of someone's adb log viewer that exhibits particularly slow flexbox and text layout.
This was added as part of following: https://github.com/WebKit/WebKit/commit/a7dd411b4e530be019992a351c3ce5a7334c834e and it is present here: https://github.com/WebKit/WebKit/blob/main/PerformanceTests/Layout/flexbox-lots-of-data.html Marking this as "RESOLVED CONFIGURATION CHANGED". Thanks!