use SkColorType instead of SkBitmap::Config in samplecode

samplecode/SampleDither.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "SampleCode.h"
 #include "SkView.h"
 #include "SkCanvas.h"
@@ skipping 52 matching lines @@
         path.lineTo(x + radius + thickness, y);
         // outer arc
         path.arcTo(bounds, 0, sweep, false);
         // inner arc
         path.arcTo(innerBounds, sweep, -sweep, false);
         path.close();
     }
 }
 
 static void make_bm(SkBitmap* bm) {
-    bm->setConfig(SkBitmap::kARGB_8888_Config, 100, 100);
-    bm->allocPixels();
-#if 0
-    bm->eraseColor(SK_ColorBLUE);
-    return;
-#else
+    bm->allocN32Pixels(100, 100);
     bm->eraseColor(SK_ColorTRANSPARENT);
-#endif
 
     SkCanvas c(*bm);
     draw_sweep(&c, bm->width(), bm->height(), 0);
 }
 
 static void pre_dither(const SkBitmap& bm) {
     SkAutoLockPixels alp(bm);
 
     for (int y = 0; y < bm.height(); y++) {
         DITHER_4444_SCAN(y);
@@ skipping 84 matching lines @@
     }
 
 private:
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() { return new DitherView; }
 static SkViewRegister reg(MyFactory);