[DevTools] Reenable test for Network Panel changes

This cl updates the test results for crrev.com/c/19671359.
Cl disabling the test: crrev.com/c/1985772.

Bug: chromium:1019723
Change-Id: I82ef805dc837e2c3b91dafc5709366da0d8bdb04
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1985775
Auto-Submit: Jan Scheffler <janscheffler@chromium.org>
Reviewed-by: Mathias Bynens <mathias@chromium.org>
Commit-Queue: Mathias Bynens <mathias@chromium.org>
Cr-Commit-Position: refs/heads/master@{#728179}

third_party/blink/web_tests/TestExpectations

@@ -6078,7 +6078,6 @@ crbug.com/1029489 http/tests/devtools/elements/elements-linkify-attributes.js [
 crbug.com/1029826 http/tests/devtools/copy-network-request.js [ Pass Failure ]
 crbug.com/1029521 virtual/threaded/external/wpt/web-animations/timing-model/animations/updating-the-finished-state.html [ Pass Failure Timeout ]
 crbug.com/1030258 http/tests/devtools/network/network-cookies-pane.js [ Pass Failure ]
-crbug.com/1019723 http/tests/devtools/network/waterfall-header-height-updates.js [ Pass Failure ]
 
 # Enable scroll-snap tests on impl thread
 # These are currently failing on Mac which needs more investigation, snap-scrolls-visual-viewport seems flaky

third_party/blink/web_tests/http/tests/devtools/network/waterfall-header-height-updates.js

@@ -22,13 +22,16 @@
   TestRunner.addResult('Node rendered showing fetch resource');
   UI.panels.network._onRequestSelected({data: request});
   UI.panels.network._showRequestPanel();
-
+  // Wait for NetworkLogViewColumn._updateRowsSize to update the header height
+  await new Promise(window.requestAnimationFrame);
   TestRunner.addResult('Height of waterfall header: ' + NetworkTestRunner.networkWaterfallColumn()._headerHeight);
 
   TestRunner.addResult('Setting large row setting to true');
   UI.panels.network._networkLogLargeRowsSetting.set(true);
   TestRunner.addResult('Unselecting request from grid');
   UI.panels.network._hideRequestPanel();
+  // Wait for NetworkLogViewColumn._updateRowsSize to update the header height
+  await new Promise(window.requestAnimationFrame);
   TestRunner.addResult('Height of waterfall header: ' + NetworkTestRunner.networkWaterfallColumn()._headerHeight);
 
   TestRunner.completeTest();