hide SkBitmap::setConfig

experimental/PdfViewer/chop_transparency_main.cpp

Index: experimental/PdfViewer/chop_transparency_main.cpp
diff --git a/experimental/PdfViewer/chop_transparency_main.cpp b/experimental/PdfViewer/chop_transparency_main.cpp
index 7dbf3fcb1494c1453092970cc12b71246777abb4..b6a104cc59d8ad5988b509bd30566d4d09bb90a2 100644
--- a/experimental/PdfViewer/chop_transparency_main.cpp
+++ b/experimental/PdfViewer/chop_transparency_main.cpp
@@ -58,9 +58,7 @@ static SkISize opaqueSize(const SkBitmap& bm) {
 }
 
 static void setup_bitmap(SkBitmap* bitmap, int width, int height) {
-    bitmap->setConfig(SkBitmap::kARGB_8888_Config, width, height);
-
-    bitmap->allocPixels();
+    bitmap->allocN32Pixels(width, height);
 }