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/GrRectanizer_fifo.cpp b/src/gpu/GrRectanizer_fifo.cpp
index 3bfc46f..0f412b8 100644
--- a/src/gpu/GrRectanizer_fifo.cpp
+++ b/src/gpu/GrRectanizer_fifo.cpp
@@ -117,7 +117,7 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 GrRectanizer* GrRectanizer::Factory(int width, int height) {
-    return new GrRectanizerFIFO(width, height);
+    return SkNEW_ARGS(GrRectanizerFIFO, (width, height));
 }