clean up (partially) colortable api

Needs this to land: https://codereview.chromium.org/2789853002/

Bug: skia:
Change-Id: I38d916a546b7fa64d000d973e695ddda24a589e7
Reviewed-on: https://skia-review.googlesource.com/10600
Commit-Queue: Mike Reed <reed@google.com>
Reviewed-by: Matt Sarett <msarett@google.com>
diff --git a/tests/PixelRefTest.cpp b/tests/PixelRefTest.cpp
index 487e519..683e249 100644
--- a/tests/PixelRefTest.cpp
+++ b/tests/PixelRefTest.cpp
@@ -69,7 +69,7 @@
 DEF_TEST(PixelRef_GenIDChange, r) {
     SkImageInfo info = SkImageInfo::MakeN32Premul(10, 10);
 
-    sk_sp<SkPixelRef> pixelRef(SkMallocPixelRef::NewAllocate(info, 0, nullptr));
+    sk_sp<SkPixelRef> pixelRef = SkMallocPixelRef::MakeAllocate(info, 0, nullptr);
 
     // Register a listener.
     int count = 0;