POSIX: Add a macro for handling EINTR.

chrome/common/transport_dib_mac.cc

Index: chrome/common/transport_dib_mac.cc
diff --git a/chrome/common/transport_dib_mac.cc b/chrome/common/transport_dib_mac.cc
index 4ac44fc2439f76d1ddcb60f22b67750f6bca30df..77717d35c15f6bc1d408623c3a67dcb01ca2d99f 100644
--- a/chrome/common/transport_dib_mac.cc
+++ b/chrome/common/transport_dib_mac.cc
@@ -6,6 +6,8 @@
 
 #include <unistd.h>
 #include <sys/stat.h>
+
+#include "base/eintr_wrappers.h"
 #include "base/shared_memory.h"
 
 TransportDIB::TransportDIB()
@@ -41,7 +43,7 @@ TransportDIB* TransportDIB::Map(TransportDIB::Handle handle) {
 
   if (!dib->shared_memory_.Map(st.st_size)) {
     delete dib;
-    close(handle.fd);
+    HANDLE_EINTR(close(handle.fd));
     return false;
   }