[css-flexbox] Fix references for a few gap tests

Bug: 762679
Change-Id: Ib2fc142d44bf8de1bb80fbacc5ea3b5075c686ca
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2116567
Auto-Submit: David Grogan <dgrogan@chromium.org>
Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Commit-Queue: David Grogan <dgrogan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#753641}

third_party/blink/web_tests/external/wpt/css/css-flexbox/gap-009-ltr.html

@@ -5,7 +5,7 @@
 <link rel="help" href="https://www.w3.org/TR/css-grid-1/#gutters">
 <link rel="help" href="https://www.w3.org/TR/css-align-3/#column-row-gap">
 <link rel="help" href="https://www.w3.org/TR/css-align-3/#gap-legacy">
-<link rel="match" href="gap-008-ltr-ref.html">
+<link rel="match" href="gap-009-ltr-ref.html">
 <meta name="flags" content="">
 <meta name="assert" content="The 'gap' property enables putting space exclusively between items">
 <style>

third_party/blink/web_tests/external/wpt/css/css-flexbox/gap-010-ltr.html

@@ -5,7 +5,7 @@
 <link rel="help" href="https://www.w3.org/TR/css-grid-1/#gutters">
 <link rel="help" href="https://www.w3.org/TR/css-align-3/#column-row-gap">
 <link rel="help" href="https://www.w3.org/TR/css-align-3/#gap-legacy">
-<link rel="match" href="gap-008-ltr-ref.html">
+<link rel="match" href="gap-010-ltr-ref.html">
 <meta name="flags" content="">
 <meta name="assert" content="The 'gap' property enables putting space exclusively between items">
 <style>