Rebaselining tests for service worker

Original PR which disabled layout test: https://chromium-review.googlesource.com/c/chromium/src/+/2463929

Explainer for this feature is https://docs.google.com/document/d/14qJ1rZyMtnIa8hPJc1V8DJRxk4lVI3hlWYGvBDICog0/edit?ts=5f7c13ce

Bug: 1137050
Change-Id: I2adec2db2a536af6ffa5e1b8daab7ab0344ba1ee
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2504690
Commit-Queue: Chait Pinnamaneni <cpinnamaneni@microsoft.com>
Reviewed-by: Dirk Pranke <dpranke@google.com>
Cr-Commit-Position: refs/heads/master@{#821980}

third_party/blink/web_tests/http/tests/devtools/service-workers/service-workers-redundant-expected.txt

@@ -3,6 +3,7 @@ ServiceWorkers must be shown correctly even if there is a redundant worker.
 The first ServiceWorker is activated.
 ==== ServiceWorkersView ====
 http://127.0.0.1:8000/devtools/service-workers/resources/service-worker-redundant-scope/
+Network requests
 Update
 Unregister
 Source
@@ -22,6 +23,7 @@ Periodic Sync
 The second Serviceworker is installed.
 ==== ServiceWorkersView ====
 http://127.0.0.1:8000/devtools/service-workers/resources/service-worker-redundant-scope/
+Network requests
 Update
 Unregister
 Source
@@ -46,6 +48,7 @@ Periodic Sync
 The first ServiceWorker worker became redundant and stopped.
 ==== ServiceWorkersView ====
 http://127.0.0.1:8000/devtools/service-workers/resources/service-worker-redundant-scope/
+Network requests
 Update
 Unregister
 Source

third_party/blink/web_tests/http/tests/devtools/service-workers/service-workers-view-expected.txt

@@ -3,6 +3,7 @@ Tests ServiceWorkersView on resources panel.
 Select ServiceWorkers tree element.
 Register ServiceWorker for scope1
 http://127.0.0.1:8000/devtools/service-workers/resources/scope1/
+Network requests
 Update
 Unregister
 Source
@@ -20,6 +21,7 @@ Periodic Sync
 Periodic Sync
 Register ServiceWorker for scope2
 http://127.0.0.1:8000/devtools/service-workers/resources/scope2
+Network requests
 Update
 Unregister
 Source
@@ -36,6 +38,7 @@ Sync
 Periodic Sync
 Periodic Sync
 http://127.0.0.1:8000/devtools/service-workers/resources/scope1/
+Network requests
 Update
 Unregister
 Source
@@ -53,6 +56,7 @@ Periodic Sync
 Periodic Sync
 Unregister ServiceWorker for scope1
 http://127.0.0.1:8000/devtools/service-workers/resources/scope2
+Network requests
 Update
 Unregister
 Source
@@ -69,6 +73,7 @@ Sync
 Periodic Sync
 Periodic Sync
 http://127.0.0.1:8000/devtools/service-workers/resources/scope1/ - deleted
+Network requests
 Update
 Unregister
 Source