[Sheriff] Mark cpu profiler test as flaky on arm.

test/cctest/cctest.status

 # Copyright 2011 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 83 matching lines @@
 
   # BUG(355): Test crashes on ARM.
   'test-log/ProfLazyMode': [SKIP],
 
   # BUG(1075): Unresolved crashes.
   'test-serialize/Deserialize': [SKIP],
   'test-serialize/DeserializeFromSecondSerializationAndRunScript2': [SKIP],
   'test-serialize/DeserializeAndRunScript2': [SKIP],
   'test-serialize/DeserializeFromSecondSerialization': [SKIP],
 
+  # BUG(2999).
+  'test-cpu-profiler/CollectCpuProfile': [PASS, FLAKY],
+
   ############################################################################
   # Slow tests.
   'test-api/Threading1': [PASS, SLOW],
   'test-api/Threading2': [PASS, SLOW],
   'test-api/Threading3': [PASS, SLOW],
   'test-api/Threading4': [PASS, SLOW],
 }],  # 'arch == arm'
 
 ##############################################################################
 ['arch == mipsel', {
@@ skipping 45 matching lines @@
   # Profiling doesn't work on Native Client.
   'test-cpu-profiler/*': [SKIP],
 
   # Fails since 16322 (new test).
   'test-code-stubs-arm/ConvertDToI': [SKIP],
 
   # BUG(2998).
   'test-macro-assembler-arm/LoadAndStoreWithRepresentation': [SKIP],
 }],  # 'arch == nacl_ia32 or arch == nacl_x64'
 ]