Convert the few remaining ARRAYSIZE_UNSAFE -> arraysize.

crypto/hmac_unittest.cc

Index: crypto/hmac_unittest.cc
diff --git a/crypto/hmac_unittest.cc b/crypto/hmac_unittest.cc
index 174c32382fae83aa8f863ff42c81ba98899cb9dd..91eccd68e231d4cc712624678681d69c3b0b1dfd 100644
--- a/crypto/hmac_unittest.cc
+++ b/crypto/hmac_unittest.cc
@@ -142,7 +142,7 @@ TEST(HMACTest, RFC2202TestCases) {
           "\xBB\xFF\x1A\x91" }
   };
 
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); ++i) {
+  for (size_t i = 0; i < arraysize(cases); ++i) {
     crypto::HMAC hmac(crypto::HMAC::SHA1);
     ASSERT_TRUE(hmac.Init(reinterpret_cast<const unsigned char*>(cases[i].key),
                           cases[i].key_len));
@@ -239,7 +239,7 @@ TEST(HMACTest, HMACObjectReuse) {
   ASSERT_TRUE(
       hmac.Init(reinterpret_cast<const unsigned char*>(kSimpleKey),
                 kSimpleKeyLength));
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSimpleHmacCases); ++i) {
+  for (size_t i = 0; i < arraysize(kSimpleHmacCases); ++i) {
     std::string data_string(kSimpleHmacCases[i].data,
                             kSimpleHmacCases[i].data_len);
     unsigned char digest[kSHA1DigestSize];
@@ -254,7 +254,7 @@ TEST(HMACTest, Verify) {
       hmac.Init(reinterpret_cast<const unsigned char*>(kSimpleKey),
                 kSimpleKeyLength));
   const char empty_digest[kSHA1DigestSize] = { 0 };
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSimpleHmacCases); ++i) {
+  for (size_t i = 0; i < arraysize(kSimpleHmacCases); ++i) {
     // Expected results
     EXPECT_TRUE(hmac.Verify(
         base::StringPiece(kSimpleHmacCases[i].data,