Mark cpu profiler test as flaky on windows.

TBR=yurys@chromium.org
BUG=v8:2999
LOG=no

Review URL: https://codereview.chromium.org/120543002

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18400 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/cctest/cctest.status

@@ -74,6 +74,7 @@
 
   # BUG(2999).
   'test-cpu-profiler/CollectCpuProfile': [PASS, FAIL],
+  'test-cpu-profiler/JsNative1JsNative2JsSample': [PASS, FLAKY],
 
   # BUG(3005).
   'test-alloc/CodeRange': [PASS, FAIL],