Add SkSTArray, hide stack storage cons in SkTArray, unify SkTArray init logic

Review URL: http://codereview.appspot.com/5127044/



git-svn-id: http://skia.googlecode.com/svn/trunk@2342 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/include/GrClip.h b/gpu/include/GrClip.h
index 9e235bf..d86eb97 100644
--- a/gpu/include/GrClip.h
+++ b/gpu/include/GrClip.h
@@ -135,8 +135,7 @@
     enum {
         kPreAllocElements = 4,
     };
-    SkAlignedSTStorage<kPreAllocElements, Element>  fListStorage;
-    SkTArray<Element>   fList;
+    SkSTArray<kPreAllocElements, Element>   fList;
 };
 #endif