Mark cpu profiler tests as flaky to avoid tree closing.

BUG=
R=jkummerow@chromium.org

Review URL: https://codereview.chromium.org/23600003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16387 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/cctest/cctest.status

@@ -52,6 +52,9 @@ test-weaksets/WeakSet_Shrinking: FAIL
 # Boot up memory use is bloated in debug mode.
 test-mark-compact/BootUpMemoryUse: PASS, PASS || FAIL if $mode == debug
 
+# Some CPU profiler tests are flaky.
+test-cpu-profiler/*: PASS || FLAKY
+
 ##############################################################################
 [ $arch == arm ]