fuchsia: base_unittests (mostly) compiling

base/files/file_util_posix.cc

Index: base/files/file_util_posix.cc
diff --git a/base/files/file_util_posix.cc b/base/files/file_util_posix.cc
index 37c24e9c4eb9f81106cc9b983a25d2bdbfebaea2..bf8e7c528deeede8b8ad20d77ad619c6c4220c29 100644
--- a/base/files/file_util_posix.cc
+++ b/base/files/file_util_posix.cc
@@ -13,7 +13,6 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <sys/errno.h>
 #include <sys/mman.h>
 #include <sys/param.h>
 #include <sys/stat.h>
@@ -56,6 +55,10 @@
 #include <grp.h>
 #endif
 
+#if !defined(OS_FUCHSIA)
+#include <sys/errno.h>

[Nico, 2017/05/17 15:52:53]

Doesn't the warning just let you know that this should be <errno.h>, not
<sys/errno.h>? Have you tried just deleting "sys/"?

[scottmg, 2017/05/17 16:52:51]

Ah, I assumed this was a Fuchsia-specific thing, but I just check a Linux and
Android sys/errno.h and they just do #include <errno.h> without the #warning. So
I just deleted this. (We already #include <errno.h> earlier in this file.

+#endif
+
 // We need to do this on AIX due to some inconsistencies in how AIX
 // handles XOPEN_SOURCE and ALL_SOURCE.
 #if defined(OS_AIX)