Turn on NaClBrowserTest.SuccessfulUMA under linux asan.

chrome/test/nacl/nacl_browsertest_uma.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/test/base/uma_histogram_helper.h"
 #include "chrome/test/nacl/nacl_browsertest_util.h"
 #include "native_client/src/trusted/service_runtime/nacl_error_code.h"
 #include "ppapi/native_client/src/trusted/plugin/plugin_error.h"
 
 namespace {
 
-// This test fails on Linux ASAN bots: <http://crbug.com/161709>.
-#if defined(OS_LINUX) && defined(ADDRESS_SANITIZER)
-#define MAYBE_SuccessfulLoadUMA DISABLED_SuccessfulLoadUMA
-#else
-#define MAYBE_SuccessfulLoadUMA SuccessfulLoadUMA
-#endif
-
-NACL_BROWSER_TEST_F(NaClBrowserTest, MAYBE_SuccessfulLoadUMA, {
+NACL_BROWSER_TEST_F(NaClBrowserTest, SuccessfulLoadUMA, {
   // Load a NaCl module to generate UMA data.
   RunLoadTest(FILE_PATH_LITERAL("nacl_load_test.html"));
 
   // Make sure histograms from child processes have been accumulated in the
   // browser brocess.
   UMAHistogramHelper histograms;
   histograms.Fetch();
 
   // Did the plugin report success?
   histograms.ExpectUniqueSample("NaCl.LoadStatus.Plugin",
@@ skipping 26 matching lines @@
     histograms.ExpectTotalCount(
         "NaCl.Perf.PNaClLoadTime.TotalUncachedKBPerSec", 1);
     histograms.ExpectTotalCount("NaCl.Perf.PNaClCache.IsHit", 1);
   }
 })
 
 // TODO(ncbray) convert the rest of nacl_uma.py (currently in the NaCl repo.)
 // Test validation failures and crashes.
 
 }  // namespace anonymous