hide SkBitmap::setConfig

bench/ImageCacheBench.cpp

Index: bench/ImageCacheBench.cpp
diff --git a/bench/ImageCacheBench.cpp b/bench/ImageCacheBench.cpp
index 9fc538ebefe3a3c4bbd5c2ef765d6479ce4c9fd1..ef29cf88ff58571495db6619523d3a10c76880f6 100644
--- a/bench/ImageCacheBench.cpp
+++ b/bench/ImageCacheBench.cpp
@@ -18,16 +18,14 @@ class ImageCacheBench : public SkBenchmark {
     };
 public:
     ImageCacheBench()  : fCache(CACHE_COUNT * 100) {
-        fBM.setConfig(SkBitmap::kARGB_8888_Config, DIM, DIM);
-        fBM.allocPixels();
+        fBM.allocN32Pixels(DIM, DIM);
     }
 
     void populateCache() {
         SkScalar scale = 1;
         for (int i = 0; i < CACHE_COUNT; ++i) {
             SkBitmap tmp;
-            tmp.setConfig(SkBitmap::kARGB_8888_Config, 1, 1);
-            tmp.allocPixels();
+            tmp.allocN32Pixels(1, 1);
             fCache.unlock(fCache.addAndLock(fBM, scale, scale, tmp));
             scale += 1;
         }