replace setConfig+allocPixels with alloc-or-install-pixels

tests/ClipperTest.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 "SkCanvas.h"
 #include "SkEdgeClipper.h"
 #include "SkLineClipper.h"
 #include "SkPath.h"
 #include "Test.h"
 
 static void test_hairclipping(skiatest::Reporter* reporter) {
     SkBitmap bm;
-    bm.setConfig(SkBitmap::kARGB_8888_Config, 4, 4);
-    bm.allocPixels();
+    bm.allocN32Pixels(4, 4);
     bm.eraseColor(SK_ColorWHITE);
 
     SkPaint paint;
     paint.setAntiAlias(true);
 
     SkCanvas canvas(bm);
     canvas.clipRect(SkRect::MakeWH(SkIntToScalar(4), SkIntToScalar(2)));
     canvas.drawLine(1.5f, 1.5f,
                     3.5f, 3.5f, paint);
 
@@ skipping 114 matching lines @@
                                   !memcmp(&gPartial[i+2], dst, sizeof(dst)));
     }
 
 }
 
 DEF_TEST(Clipper, reporter) {
     test_intersectline(reporter);
     test_edgeclipper();
     test_hairclipping(reporter);
 }