[Sheriff] Disable *SplitCacheDedicatedWorkersScripts* on WIN

Flaky on Windows.

TBR=minggang.wang@intel.com

Bug: 1104847
Change-Id: Idbed763741b2fdf2fe3e8697b2465633bf14f007
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2317884Reviewed-by: Roman Sorokin [CET] <rsorokin@chromium.org>
Commit-Queue: Roman Sorokin [CET] <rsorokin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#791780}

content/browser/net/split_cache_browsertest.cc

@@ -757,6 +757,14 @@ IN_PROC_BROWSER_TEST_P(SplitCacheContentBrowserTestEnabled,
       GenURL("e.com", "/worker.js")));
 }
 
+#if defined(OS_WIN)
+// Flaky on Windows: https://crbug.com/1104847
+#define MAYBE_SplitCacheDedicatedWorkersScripts \
+  DISABLED_SplitCacheDedicatedWorkersScripts
+#else
+#define MAYBE_SplitCacheDedicatedWorkersScripts \
+  SplitCacheDedicatedWorkersScripts
+#endif
 IN_PROC_BROWSER_TEST_P(SplitCacheContentBrowserTestEnabled,
                        SplitCacheDedicatedWorkersScripts) {
   // Load a.com's worker. The first time the worker script is loaded from the