hide SkBitmap::setConfig

tools/skdiff_utils.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 "skdiff.h"
 #include "skdiff_utils.h"
 #include "SkBitmap.h"
 #include "SkData.h"
@@ skipping 126 matching lines @@
                                  DiffMetricProc dmp,
                                  const int colorThreshold,
                                  const SkString& outputDir,
                                  const SkString& filename) {
     const int w = drp->fBase.fBitmap.width();
     const int h = drp->fBase.fBitmap.height();
 
     if (w != drp->fComparison.fBitmap.width() || h != drp->fComparison.fBitmap.height()) {
         drp->fResult = DiffRecord::kDifferentSizes_Result;
     } else {
-        drp->fDifference.fBitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
-        drp->fDifference.fBitmap.allocPixels();
+        drp->fDifference.fBitmap.allocN32Pixels(w, h);
 
-        drp->fWhite.fBitmap.setConfig(SkBitmap::kARGB_8888_Config, w, h);
-        drp->fWhite.fBitmap.allocPixels();
+        drp->fWhite.fBitmap.allocN32Pixels(w, h);
 
         SkASSERT(DiffRecord::kUnknown_Result == drp->fResult);
         compute_diff(drp, dmp, colorThreshold);
         SkASSERT(DiffRecord::kUnknown_Result != drp->fResult);
     }
 
     if (outputDir.isEmpty()) {
         drp->fDifference.fStatus = DiffResource::kUnspecified_Status;
         drp->fWhite.fStatus = DiffResource::kUnspecified_Status;
 
@@ skipping 15 matching lines @@
                 drp->fDifference.fStatus = DiffResource::kDoesNotExist_Status;
             }
             if (write_bitmap(drp->fWhite.fFullPath, drp->fWhite.fBitmap)) {
                 drp->fWhite.fStatus = DiffResource::kExists_Status;
             } else {
                 drp->fWhite.fStatus = DiffResource::kDoesNotExist_Status;
             }
         }
     }
 }