[devtools] Re-enable test with updated expectations.

This CL enables a layout test with updated expectations after
landing crrev.com/c/1891417.

Bug: chromium:1004203
Change-Id: I27d6bc861c41f4d931e4a7a9c216f8c763bf1ca8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1895343
Commit-Queue: Sigurd Schneider <sigurds@chromium.org>
Commit-Queue: Yang Guo <yangguo@chromium.org>
Reviewed-by: Yang Guo <yangguo@chromium.org>
Auto-Submit: Sigurd Schneider <sigurds@chromium.org>
Cr-Commit-Position: refs/heads/master@{#712158}

third_party/blink/web_tests/TestExpectations

@@ -5760,6 +5760,3 @@ crbug.com/963183 http/tests/devtools/network/network-cookies-pane.js [ Pass Time
 crbug.com/963183 http/tests/devtools/network/preview-searchable.js [ Pass Failure ]
 crbug.com/963183 http/tests/devtools/network/waterfall-header-height-updates.js [ Pass Failure ]
 crbug.com/963183 http/tests/devtools/network/network-search.js [ Pass Timeout Failure ]
-
-# Temporarily disabled for landing code coverage changes in DevTools
-crbug.com/1004203 http/tests/devtools/user-metrics.js [ Pass Failure ]

third_party/blink/web_tests/http/tests/devtools/user-metrics-expected.txt

@@ -13,6 +13,7 @@ recordActionTaken:
     ConsoleEvaluated : 8
     CoverageReportFiltered : 34
     CoverageStarted : 28
+    CoverageStartedPerBlock : 35
     CpuProfileNodeExcluded : 23
     CpuProfileNodeFocused : 22
     CpuThrottlingEnabled : 21