replace setConfig+allocPixels with single call

tests/PathOpsExtendedTest.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 "PathOpsExtendedTest.h"
 #include "PathOpsThreadedCommon.h"
 #include "SkBitmap.h"
@@ skipping 271 matching lines @@
     }
     SkScalar hScale = (bitWidth - 2) / largerWidth;
     SkScalar vScale = (bitHeight - 2) / largerHeight;
     scale.reset();
     scale.preScale(hScale, vScale);
 }
 
 static int pathsDrawTheSame(SkBitmap& bits, const SkPath& scaledOne, const SkPath& scaledTwo,
         int& error2x2) {
     if (bits.width() == 0) {
-        bits.setConfig(SkBitmap::kARGB_8888_Config, bitWidth * 2, bitHeight);
-        bits.allocPixels();
+        bits.allocN32Pixels(bitWidth * 2, bitHeight);
     }
     SkCanvas canvas(bits);
     canvas.drawColor(SK_ColorWHITE);
     SkPaint paint;
     canvas.save();
     const SkRect& bounds1 = scaledOne.getBounds();
     canvas.translate(-bounds1.fLeft + 1, -bounds1.fTop + 1);
     canvas.drawPath(scaledOne, paint);
     canvas.restore();
     canvas.save();
@@ skipping 44 matching lines @@
     SkBitmap bits;
     char out[256];
     int bitWidth = SkScalarCeilToInt(larger.width()) + 2;
     if (bitWidth * 2 + 1 >= (int) sizeof(out)) {
         return false;
     }
     int bitHeight = SkScalarCeilToInt(larger.height()) + 2;
     if (bitHeight >= (int) sizeof(out)) {
         return false;
     }
-    bits.setConfig(SkBitmap::kARGB_8888_Config, bitWidth * 2, bitHeight);
-    bits.allocPixels();
+    bits.allocN32Pixels(bitWidth * 2, bitHeight);
     SkCanvas canvas(bits);
     canvas.drawColor(SK_ColorWHITE);
     SkPaint paint;
     canvas.save();
     canvas.translate(-bounds1.fLeft + 1, -bounds1.fTop + 1);
     canvas.drawPath(one, paint);
     canvas.restore();
     canvas.save();
     canvas.translate(-bounds1.fLeft + 1 + bitWidth, -bounds1.fTop + 1);
     canvas.drawPath(two, paint);
@@ skipping 342 matching lines @@
         }
         if (tests[index].fun == stopTest) {
             SkDebugf("lastTest\n");
         }
         if (index == last) {
             break;
         }
         index += reverse ? -1 : 1;
     } while (true);
 }