Extract SIGPIPE ignoring code to a common place.

base/debug/stack_trace_android.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 "base/debug/stack_trace.h"
 
 #include <signal.h>
 #include <sys/types.h>
 #include <unistd.h>
 
 #include "base/logging.h"
+#include "base/process_util.h"
 
 namespace base {
 namespace debug {
 
 bool EnableInProcessStackDumping() {
   // When running in an application, our code typically expects SIGPIPE
   // to be ignored.  Therefore, when testing that same code, it should run
   // with SIGPIPE ignored as well.
-  // TODO(phajdan.jr): De-duplicate this SIGPIPE code.
-  struct sigaction action;
-  memset(&action, 0, sizeof(action));
-  action.sa_handler = SIG_IGN;
-  sigemptyset(&action.sa_mask);
-  return (sigaction(SIGPIPE, &action, NULL) == 0);
+  // TODO(phajdan.jr): Ignoring SIGPIPE has nothing to do with stack dumping.
+  return base::IgnoreSigPipe();
 }
 
 StackTrace::StackTrace() {
 }
 
 // Sends fake SIGSTKFLT signals to let the Android linker and debuggerd dump
 // stack. See inlined comments and Android bionic/linker/debugger.c and
 // system/core/debuggerd/debuggerd.c for details.
 void StackTrace::PrintBacktrace() const {
   // Get the current handler of SIGSTKFLT for later use.
@@ skipping 15 matching lines @@
   // Restore the signal handler so that this method can work the next time.
   signal(SIGSTKFLT, sig_handler);
 }
 
 void StackTrace::OutputToStream(std::ostream* os) const {
   NOTIMPLEMENTED();
 }
 
 }  // namespace debug
 }  // namespace base