Disable SplitCacheDedicatedWorkers test on LSan

Bug: 999530
Change-Id: I3fb1beb7ae91322169f441f6425aff0124ba3064
Tbr: cammie@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1829913Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#701253}

content/browser/web_contents/web_contents_impl_browsertest.cc

@@ -1412,7 +1412,7 @@ IN_PROC_BROWSER_TEST_F(WebContentsSplitCacheBrowserTestDisabled,
 }
 
 // TODO(http://crbug.com/997808): Flaky on Linux ASAN.
-#if defined(OS_LINUX) && defined(ADDRESS_SANITIZER)
+#if defined(OS_LINUX) && (defined(ADDRESS_SANITIZER) || defined(LEAK_SANITIZER))
 #define MAYBE_SplitCacheDedicatedWorkers DISABLED_SplitCacheDedicatedWorkers
 #else
 #define MAYBE_SplitCacheDedicatedWorkers SplitCacheDedicatedWorkers