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/GrTextStrike.cpp b/src/gpu/GrTextStrike.cpp
index e61c46e..aebaaf8 100644
--- a/src/gpu/GrTextStrike.cpp
+++ b/src/gpu/GrTextStrike.cpp
@@ -36,10 +36,11 @@
 GrTextStrike* GrFontCache::generateStrike(GrFontScaler* scaler,
                                           const Key& key) {
     if (NULL == fAtlasMgr) {
-        fAtlasMgr = new GrAtlasMgr(fGpu);
+        fAtlasMgr = SkNEW_ARGS(GrAtlasMgr, (fGpu));
     }
-    GrTextStrike* strike = new GrTextStrike(this, scaler->getKey(),
-                                            scaler->getMaskFormat(), fAtlasMgr);
+    GrTextStrike* strike = SkNEW_ARGS(GrTextStrike,
+                                      (this, scaler->getKey(),
+                                       scaler->getMaskFormat(), fAtlasMgr));
     fCache.insert(key, strike);
 
     if (fHead) {