remove deprecated use of bitmap config from tests

tests/DrawTextTest.cpp

Index: tests/DrawTextTest.cpp
diff --git a/tests/DrawTextTest.cpp b/tests/DrawTextTest.cpp
index bafd2cb5e28fd66f2a6dbff1e557011d49725e68..3a96c4ff2d8cb3621c952ccac24ca0a2495e17c2 100644
--- a/tests/DrawTextTest.cpp
+++ b/tests/DrawTextTest.cpp
@@ -16,9 +16,8 @@
 
 static const SkColor bgColor = SK_ColorWHITE;
 
-static void create(SkBitmap* bm, SkIRect bound, SkBitmap::Config config) {
-    bm->setConfig(config, bound.width(), bound.height());
-    bm->allocPixels();
+static void create(SkBitmap* bm, SkIRect bound) {
+    bm->allocN32Pixels(bound.width(), bound.height());
 }
 
 static void drawBG(SkCanvas* canvas) {
@@ -67,12 +66,12 @@ DEF_TEST(DrawText, reporter) {
 
     SkIRect drawTextRect = SkIRect::MakeWH(64, 64);
     SkBitmap drawTextBitmap;
-    create(&drawTextBitmap, drawTextRect, SkBitmap::kARGB_8888_Config);
+    create(&drawTextBitmap, drawTextRect);
     SkCanvas drawTextCanvas(drawTextBitmap);
 
     SkIRect drawPosTextRect = SkIRect::MakeWH(64, 64);
     SkBitmap drawPosTextBitmap;
-    create(&drawPosTextBitmap, drawPosTextRect, SkBitmap::kARGB_8888_Config);
+    create(&drawPosTextBitmap, drawPosTextRect);
     SkCanvas drawPosTextCanvas(drawPosTextBitmap);
 
     for (float offsetY = 0.0f; offsetY < 1.0f; offsetY += (1.0f / 16.0f)) {