use IGNORE_EINTR w/close

HANDLE_EINTR is both not safe and not useful on Linux systems.
Switch to IGNORE_EINTR like Chromium has done everywhere.

See http://crbug.com/269623 for details.

BUG=chromium:373154
TEST=`cbuildbot {arm,amd64,x86}-generic-full` passes

Change-Id: Ia2ee7db803366f1305919c4c40c2709e62faae20
Reviewed-on: https://chromium-review.googlesource.com/199823
Reviewed-by: Alex Deymo <deymo@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
diff --git a/file_descriptor.cc b/file_descriptor.cc
index 255307d..f6b55bb 100644
--- a/file_descriptor.cc
+++ b/file_descriptor.cc
@@ -48,7 +48,7 @@
 
 bool EintrSafeFileDescriptor::Close() {
   CHECK_GE(fd_, 0);
-  if (HANDLE_EINTR(close(fd_)))
+  if (IGNORE_EINTR(close(fd_)))
     return false;
   Reset();
   return true;