Style Change: NULL->nullptr

tests/PremulAlphaRoundTripTest.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 "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkConfig8888.h"
@@ skipping 69 matching lines @@
             if (0 == dtype) {
                 device.reset(SkBitmapDevice::Create(info, props));
             } else {
 #if SK_SUPPORT_GPU
                 GrContextFactory::GLContextType type =
                     static_cast<GrContextFactory::GLContextType>(glCtxType);
                 if (!GrContextFactory::IsRenderingGLContext(type)) {
                     continue;
                 }
                 GrContext* ctx = factory->get(type);
-                if (NULL == ctx) {
+                if (nullptr == ctx) {
                     continue;
                 }
                 device.reset(SkGpuDevice::Create(ctx, SkSurface::kNo_Budgeted, info, 0, &props,
                                                  SkGpuDevice::kUninit_InitContents));
 #else
                 continue;
 #endif
             }
             SkCanvas canvas(device);
 
@@ skipping 24 matching lines @@
                         if (pixels1[x] != pixels2[x]) {
                             SkDebugf("%x != %x, x = %d, y = %d\n", pixels1[x], pixels2[x], x, y);
                         }
                         REPORTER_ASSERT(reporter, success = pixels1[x] == pixels2[x]);
                     }
                 }
             }
         }
     }
 }