Convert ARRAYSIZE_UNSAFE -> arraysize in chrome/browser/.

chrome/browser/extensions/api/socket/udp_socket_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 "extensions/browser/api/socket/udp_socket.h"
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 14 matching lines @@
 }
 
 static void OnCompleted(int bytes_read,
                         scoped_refptr<net::IOBuffer> io_buffer,
                         const std::string& address,
                         int port) {
   // Do nothing; don't care.
 }
 
 static const char test_message[] = "$$TESTMESSAGETESTMESSAGETESTMESSAGETEST$$";
-static const int test_message_length = ARRAYSIZE_UNSAFE(test_message);
+static const int test_message_length = arraysize(test_message);
 
 static void OnSendCompleted(int result) {
   EXPECT_EQ(test_message_length, result);
 }
 
 TEST(UDPSocketUnitTest, TestUDPSocketRecvFrom) {
   base::MessageLoopForIO io_loop;  // For RecvFrom to do its threaded work.
   UDPSocket socket("abcdefghijklmnopqrst");
 
   // Confirm that we can call two RecvFroms in quick succession without
@@ skipping 83 matching lines @@
   io_loop.PostDelayedTask(FROM_HERE,
                           base::Bind(&QuitMessageLoop),
                           TestTimeouts::action_timeout());
 
   io_loop.Run();
 
   EXPECT_TRUE(packet_received) << "Failed to receive from multicast address";
 }
 
 }  // namespace extensions