Disable NaClBrowserTestGLibcVcacheExtension.ValidationCacheOfMainNexe on ARM.

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 "base/test/histogram_tester.h"
 #include "chrome/test/nacl/nacl_browsertest_util.h"
 #include "components/nacl/browser/nacl_browser.h"
 #include "content/public/test/browser_test_utils.h"
 #include "native_client/src/trusted/service_runtime/nacl_error_code.h"
 #include "ppapi/c/private/ppb_nacl_private.h"
@@ skipping 116 matching lines @@
 
 class NaClBrowserTestGLibcVcacheExtension:
       public NaClBrowserTestGLibcExtension {
  public:
   virtual base::FilePath::StringType Variant() override {
     return FILE_PATH_LITERAL("extension_vcache_test/glibc");
   }
 };
 
 IN_PROC_BROWSER_TEST_F(NaClBrowserTestGLibcVcacheExtension,
-                       ValidationCacheOfMainNexe) {
+                       MAYBE_GLIBC(ValidationCacheOfMainNexe)) {
   // Make sure histograms from child processes have been accumulated in the
   // browser process.
   base::HistogramTester histograms;
   // Hardcoded extension AppID that corresponds to the hardcoded
   // public key in the manifest.json file. We need to load the extension
   // nexe from the same origin, so we can't just try to load the extension
   // nexe as a mime-type handler from a non-extension URL.
   base::FilePath::StringType full_url =
       FILE_PATH_LITERAL("chrome-extension://cbcdidchbppangcjoddlpdjlenngjldk/")
       FILE_PATH_LITERAL("extension_validation_cache.html");
@@ skipping 61 matching lines @@
   // No extra cache settings.
   histograms.ExpectUniqueSample("NaCl.ValidationCache.Set",
                                nacl::NaClBrowser::CACHE_HIT, 3);
 }
 
 
 // TODO(ncbray) convert the rest of nacl_uma.py (currently in the NaCl repo.)
 // Test validation failures and crashes.
 
 }  // namespace