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

content/browser/renderer_host/render_sandbox_host_linux.cc

Index: content/browser/renderer_host/render_sandbox_host_linux.cc
diff --git a/content/browser/renderer_host/render_sandbox_host_linux.cc b/content/browser/renderer_host/render_sandbox_host_linux.cc
index d0b85c126d1f3b2d84b171f3b4fbf448b9184155..16fa2c44e95db141d40452b3ed8014f0fae7dda5 100644
--- a/content/browser/renderer_host/render_sandbox_host_linux.cc
+++ b/content/browser/renderer_host/render_sandbox_host_linux.cc
@@ -665,7 +665,14 @@ void RenderSandboxHostLinux::Init(const std::string& sandbox_path) {
   // inherit some sockets. With PF_UNIX+SOCK_DGRAM, it can call sendmsg to send
   // a datagram to any (abstract) socket on the same system. With
   // SOCK_SEQPACKET, this is prevented.
+#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(AF_UNIX, SOCK_SEQPACKET, 0, fds) != 0)
+    CHECK(socketpair(AF_UNIX, SOCK_DGRAM, 0, fds) == 0);
+#else
   CHECK(socketpair(AF_UNIX, SOCK_SEQPACKET, 0, fds) == 0);
+#endif
 
   renderer_socket_ = fds[0];
   const int browser_socket = fds[1];