Move CreateSocketPair to header file

base/posix/unix_domain_socket_linux.cc

Index: base/posix/unix_domain_socket_linux.cc
diff --git a/base/posix/unix_domain_socket_linux.cc b/base/posix/unix_domain_socket_linux.cc
index 8b3094eedfc8305bc1bd13cf9f9e45b41274ed8f..6b445c6615be56a66c2642b2933f65cbd017309e 100644
--- a/base/posix/unix_domain_socket_linux.cc
+++ b/base/posix/unix_domain_socket_linux.cc
@@ -26,10 +26,7 @@ namespace base {
 const size_t UnixDomainSocket::kMaxFileDescriptors = 16;
 
 #if !defined(OS_NACL_NONSFI)
-// Creates a connected pair of UNIX-domain SOCK_SEQPACKET sockets, and passes
-// ownership of the newly allocated file descriptors to |one| and |two|.
-// Returns true on success.
-static bool CreateSocketPair(ScopedFD* one, ScopedFD* two) {
+bool CreateSocketPair(ScopedFD* one, ScopedFD* two) {
   int raw_socks[2];
   if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, raw_socks) == -1)
     return false;