Add placement new macros to SkPostConfig, call SkNEW* from Ganesh.

TODO: unify with the placement new implementation in SkTemplatesPriv.h,
once various issues there are overcome. reed@ should be taking the lead
there.

http://codereview.appspot.com/6384043/



git-svn-id: http://skia.googlecode.com/svn/trunk@4492 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/SkGrPixelRef.cpp b/src/gpu/SkGrPixelRef.cpp
index 7280a64..7e0e2cd 100644
--- a/src/gpu/SkGrPixelRef.cpp
+++ b/src/gpu/SkGrPixelRef.cpp
@@ -81,7 +81,7 @@
     dst->releaseRenderTarget();
 #endif
 
-    SkGrPixelRef* pixelRef = new SkGrPixelRef(dst);
+    SkGrPixelRef* pixelRef = SkNEW_ARGS(SkGrPixelRef, (dst));
     GrSafeUnref(dst);
     return pixelRef;
 }