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/GrStencilAndCoverPathRenderer.cpp b/src/gpu/GrStencilAndCoverPathRenderer.cpp
index 81dc1db..a138857 100644
--- a/src/gpu/GrStencilAndCoverPathRenderer.cpp
+++ b/src/gpu/GrStencilAndCoverPathRenderer.cpp
@@ -16,7 +16,7 @@
     GrAssert(NULL != context);
     GrAssert(NULL != context->getGpu());
     if (context->getGpu()->getCaps().fPathStencilingSupport) {
-        return new GrStencilAndCoverPathRenderer(context->getGpu());
+        return SkNEW_ARGS(GrStencilAndCoverPathRenderer, (context->getGpu()));
     } else {
         return NULL;
     }