Convert ARRAYSIZE_UNSAFE -> arraysize in chrome/browser/.

chrome/browser/signin/signin_error_notifier_ash_unittest.cc

Index: chrome/browser/signin/signin_error_notifier_ash_unittest.cc
diff --git a/chrome/browser/signin/signin_error_notifier_ash_unittest.cc b/chrome/browser/signin/signin_error_notifier_ash_unittest.cc
index 2503ebc06b32862f1c21eaf945bd41e00c95f0bd..e0d539a18aee5cb00e662801c533cc619bad595f 100644
--- a/chrome/browser/signin/signin_error_notifier_ash_unittest.cc
+++ b/chrome/browser/signin/signin_error_notifier_ash_unittest.cc
@@ -236,10 +236,10 @@ TEST_F(SigninErrorNotifierTest, AuthStatusEnumerateAllErrors) {
     { GoogleServiceAuthError::SERVICE_ERROR, true },
     { GoogleServiceAuthError::WEB_LOGIN_REQUIRED, true },
   };
-  COMPILE_ASSERT(ARRAYSIZE_UNSAFE(table) == GoogleServiceAuthError::NUM_STATES,
+  COMPILE_ASSERT(arraysize(table) == GoogleServiceAuthError::NUM_STATES,
       kTable_size_does_not_match_number_of_auth_error_types);
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(table); ++i) {
+  for (size_t i = 0; i < arraysize(table); ++i) {
     FakeAuthStatusProvider provider(error_controller_);
     provider.SetAuthError(kTestAccountId,
                           kTestUsername,