trim #include <new> from SkPostConfig.h

Change-Id: I693ddcd4ade101ba4eb4102e03adce183aa1d672
Reviewed-on: https://skia-review.googlesource.com/133829
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
diff --git a/src/utils/SkLua.cpp b/src/utils/SkLua.cpp
index 36bd0b2..53e8bb3 100644
--- a/src/utils/SkLua.cpp
+++ b/src/utils/SkLua.cpp
@@ -31,6 +31,7 @@
 #include "SkSurface.h"
 #include "SkTextBlob.h"
 #include "SkTypeface.h"
+#include <new>
 
 extern "C" {
     #include "lua.h"