POSIX: Add a macro for handling EINTR.

chrome/browser/process_singleton_linux.cc

Index: chrome/browser/process_singleton_linux.cc
diff --git a/chrome/browser/process_singleton_linux.cc b/chrome/browser/process_singleton_linux.cc
index 4fba3734003cba54a0188fa680e79d8ce5e0c077..685b9f008f73f2d60dd6c59a73871fbe6f5705d3 100644
--- a/chrome/browser/process_singleton_linux.cc
+++ b/chrome/browser/process_singleton_linux.cc
@@ -9,6 +9,7 @@
 #include <sys/socket.h>
 #include <sys/un.h>
 
+#include "base/eintr_wrappers.h"
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "chrome/common/chrome_constants.h"
@@ -25,7 +26,8 @@ bool ProcessSingleton::NotifyOtherProcess() {
   sockaddr_un addr;
   SetupSocket(&sock, &addr);
 
-  if (connect(sock, reinterpret_cast<sockaddr*>(&addr), sizeof(addr)) < 0 &&
+  if (HANDLE_EINTR(connect(sock, reinterpret_cast<sockaddr*>(&addr),
+                           sizeof(addr))) < 0 &&
       (errno == ENOENT || errno == ECONNREFUSED)) {
     return false;  // Tell the caller there's nobody to notify.
   }