Update from https://crrev.com/333737

sandbox/linux/syscall_broker/broker_process_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 "sandbox/linux/syscall_broker/broker_process.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <poll.h>
 #include <sys/resource.h>
@@ skipping 523 matching lines @@
   SANDBOX_ASSERT(ipc_fd >= 0);
 
   static const char kBogus[] = "not a pickle";
   std::vector<int> fds;
   fds.push_back(message_fd.get());
 
   // The broker process should only have a couple spare file descriptors
   // available, but for good measure we send it fd_limit bogus IPCs anyway.
   for (rlim_t i = 0; i < fd_limit; ++i) {
     SANDBOX_ASSERT(
-        UnixDomainSocket::SendMsg(ipc_fd, kBogus, sizeof(kBogus), fds));
+        base::UnixDomainSocket::SendMsg(ipc_fd, kBogus, sizeof(kBogus), fds));
   }
 
   const int fd = open_broker.Open(kCpuInfo, O_RDONLY);
   SANDBOX_ASSERT(fd >= 0);
   SANDBOX_ASSERT(0 == IGNORE_EINTR(close(fd)));
 }
 
 bool CloseFD(int fd) {
   PCHECK(0 == IGNORE_EINTR(close(fd)));
   return true;
@@ skipping 92 matching lines @@
     ssize_t len = HANDLE_EINTR(read(fd_check, buf, sizeof(buf)));
 
     ASSERT_EQ(len, static_cast<ssize_t>(sizeof(kTestText)));
     ASSERT_EQ(memcmp(kTestText, buf, sizeof(kTestText)), 0);
   }
 }
 
 }  // namespace syscall_broker
 
 }  // namespace sandbox