Convert ARRAYSIZE_UNSAFE -> arraysize in base/.

base/metrics/field_trial_unittest.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/metrics/field_trial.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/rand_util.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 945 matching lines @@
   // Different cases to test, e.g. default vs. non default group being chosen.
   struct {
     double entropy_value;
     const char* expected_group;
   } test_cases[] = {
     { 0.4, "A" },
     { 0.85, "B" },
     { 0.95, kDefaultGroupName },
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(test_cases); ++i) {
+  for (size_t i = 0; i < arraysize(test_cases); ++i) {
     TestFieldTrialObserver observer;
     scoped_refptr<FieldTrial> trial(
        FieldTrial::CreateSimulatedFieldTrial(kTrialName, 100, kDefaultGroupName,
                                              test_cases[i].entropy_value));
     trial->AppendGroup("A", 80);
     trial->AppendGroup("B", 10);
     EXPECT_EQ(test_cases[i].expected_group, trial->group_name());
 
     // Field trial shouldn't have been registered with the list.
     EXPECT_FALSE(FieldTrialList::TrialExists(kTrialName));
     EXPECT_EQ(0u, FieldTrialList::GetFieldTrialCount());
 
     // Observer shouldn't have been notified.
     RunLoop().RunUntilIdle();
     EXPECT_TRUE(observer.trial_name().empty());
 
     // The trial shouldn't be in the active set of trials.
     FieldTrial::ActiveGroups active_groups;
     FieldTrialList::GetActiveFieldTrialGroups(&active_groups);
     EXPECT_TRUE(active_groups.empty());
 
     // The trial shouldn't be listed in the |StatesToString()| result.
     std::string states;
     FieldTrialList::StatesToString(&states);
     EXPECT_TRUE(states.empty());
   }
 }
 
 }  // namespace base