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/core/SkGlyphRun.cpp b/src/core/SkGlyphRun.cpp
index ce4c907..6209b58 100644
--- a/src/core/SkGlyphRun.cpp
+++ b/src/core/SkGlyphRun.cpp
@@ -8,6 +8,7 @@
 #include "SkGlyphRun.h"
 
 #include <algorithm>
+#include <new>
 #include <tuple>
 
 #include "SkDevice.h"