Mark test http/tests/devtools/elements/edit/edit-dom-actions-1.js as flaky on Win

The test is flaky on Win. See https://analysis.chromium.org/p/chromium/flake-portal/flakes/occurrences?key=ag9zfmZpbmRpdC1mb3ItbWVyZgsSBUZsYWtlIltjaHJvbWl1bUBibGlua193ZWJfdGVzdHNfZXhwYXJjaGl2ZUBodHRwL3Rlc3RzL2RldnRvb2xzL2VsZW1lbnRzL2VkaXQvZWRpdC1kb20tYWN0aW9ucy0xLmpzDA

TBR=luoe@chromium.org
NOTRY=true

Bug: 985811
Change-Id: Ie224b703dc1b6c45765ff52f54e793aa46d9af87
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1714327Reviewed-by: Yi Gu <yigu@chromium.org>
Commit-Queue: Yi Gu <yigu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#679827}

third_party/blink/web_tests/TestExpectations

@@ -6299,7 +6299,8 @@ crbug.com/985232 [ Win7 ] external/wpt/html/semantics/scripting-1/the-script-ele
 crbug.com/985232 [ Win7 ] virtual/streaming-preload/external/wpt/html/semantics/scripting-1/the-script-element/module/dynamic-import/dynamic-imports-credentials.sub.html [ Pass Failure ]
 
 # Sheriff 2019-07-19
-crbug.com/985811 [ Win7 ] http/tests/devtools/elements/edit/edit-dom-actions-2.js [ Pass Timeout ]
+crbug.com/985811 [ Win ] http/tests/devtools/elements/edit/edit-dom-actions-1.js [ Pass Timeout ]
+crbug.com/985811 [ Win ] http/tests/devtools/elements/edit/edit-dom-actions-2.js [ Pass Timeout ]
 crbug.com/985869 [ Linux Win7 ] http/tests/security/contentSecurityPolicy/object-src-no-url-allowed.html [ Pass Failure ]
 crbug.com/985869 [ Linux Win7 ] virtual/blink-cors/http/tests/security/contentSecurityPolicy/object-src-no-url-allowed.html [ Pass Failure ]