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

tests/BitmapHeapTest.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 "SkBitmap.h"
 #include "SkBitmapHeap.h"
 #include "SkColor.h"
@@ skipping 15 matching lines @@
 
 public:
     static int32_t GetRefCount(const SkBitmapHeapEntry* entry) {
         return entry->fRefCount;
     }
 };
 
 DEF_TEST(BitmapHeap, reporter) {
     // Create a bitmap shader.
     SkBitmap bm;
-    bm.setConfig(SkBitmap::kARGB_8888_Config, 2, 2);
-    bm.allocPixels();
+    bm.allocN32Pixels(2, 2);
     bm.eraseColor(SK_ColorRED);
     uint32_t* pixel = bm.getAddr32(1,0);
     *pixel = SK_ColorBLUE;
 
     SkShader* bitmapShader = SkShader::CreateBitmapShader(bm, SkShader::kRepeat_TileMode,
                                                           SkShader::kRepeat_TileMode);
     SkAutoTUnref<SkShader> aur(bitmapShader);
 
     // Flatten, storing it in the bitmap heap.
     SkBitmapHeap heap(1, 1);
@@ skipping 29 matching lines @@
     heap.deferAddingOwners();
     index = dictionary.find(*bitmapShader);
     heap.endAddingOwnersDeferral(false);
 
     // The dictionary should report the same index since the new entry is identical.
     // The bitmap heap should contain the bitmap, but with no references.
     REPORTER_ASSERT(reporter, 1 == index);
     REPORTER_ASSERT(reporter, heap.count() == 1);
     REPORTER_ASSERT(reporter, SkBitmapHeapTester::GetRefCount(heap.getEntry(0)) == 0);
 }