Replace OS_LINUX ifdefs with OS_POSIX & !OS_MACOSX, TOOLKIT_USES_GTK, or

content/browser/zygote_host_linux.cc

 // Copyright (c) 2011 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 "content/browser/zygote_host_linux.h"
 
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <unistd.h>
@@ skipping 63 matching lines @@
   DCHECK(!init_);
   init_ = true;
 
   FilePath chrome_path;
   CHECK(PathService::Get(base::FILE_EXE, &chrome_path));
   CommandLine cmd_line(chrome_path);
 
   cmd_line.AppendSwitchASCII(switches::kProcessType, switches::kZygoteProcess);
 
   int fds[2];
+#if defined(OS_FREEBSD) || defined(OS_OPENBSD)
+  // The BSDs often don't support SOCK_SEQPACKET yet, so fall back to
+  // SOCK_DGRAM if necessary.
+  if (socketpair(PF_UNIX, SOCK_SEQPACKET, 0, fds) != 0)
+    CHECK(socketpair(PF_UNIX, SOCK_DGRAM, 0, fds) == 0);
+#else
   CHECK(socketpair(PF_UNIX, SOCK_SEQPACKET, 0, fds) == 0);
+#endif
   base::file_handle_mapping_vector fds_to_map;
   fds_to_map.push_back(std::make_pair(fds[1], 3));
 
   const CommandLine& browser_command_line = *CommandLine::ForCurrentProcess();
   if (browser_command_line.HasSwitch(switches::kZygoteCmdPrefix)) {
     cmd_line.PrependWrapper(
         browser_command_line.GetSwitchValueNative(switches::kZygoteCmdPrefix));
   }
   // Append any switches from the browser process that need to be forwarded on
   // to the zygote/renderers.
@@ skipping 262 matching lines @@
       !read_pickle.ReadInt(&iter, &tmp_exit_code)) {
     LOG(WARNING) << "Error parsing GetTerminationStatus response from zygote.";
     return base::TERMINATION_STATUS_NORMAL_TERMINATION;
   }
 
   if (exit_code)
     *exit_code = tmp_exit_code;
 
   return static_cast<base::TerminationStatus>(status);
 }