use SkColorType instead of SkBitmap::Config in samplecode

samplecode/SampleRotateCircles.cpp

 /*
  * Copyright 2012 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 90 matching lines @@
             return true;
         }
         return this->INHERITED::onQuery(evt);
     }
 
     void draw_real_circle(SkCanvas* canvas, SkScalar radius) {
         int w = SkScalarCeilToInt(radius * 2);
         int h = w;
 
         SkBitmap bm;
-        bm.setConfig(SkBitmap::kARGB_8888_Config, w, h);
-        bm.allocPixels();
+        bm.allocN32Pixels(w, h);
         bm.eraseColor(0);
 
         SkAutoLockPixels alp(bm);
 
         SkScalar cx = radius;
         SkScalar cy = radius;
         for (int y = 0; y < h; y += 1) {
             for (int x = 0; x < w; x += 1) {
                 float d = sqrtf((x - cx)*(x - cx) + (y - cy)*(y - cy));
                 if (d <= radius) {
@@ skipping 229 matching lines @@
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 
 static SkView* F0() { return new RotateCirclesView; }
 static SkViewRegister gR0(F0);
 static SkView* F1() { return new TestCirclesView; }
 static SkViewRegister gR1(F1);
 static SkView* F2() { return new TestStrokeView; }
 static SkViewRegister gR2(F2);