Style Change: NULL->nullptr
DOCS_PREVIEW= https://skia.org/?cl=1316233002

Review URL: https://codereview.chromium.org/1316233002
diff --git a/tests/MaskCacheTest.cpp b/tests/MaskCacheTest.cpp
index f4e316c..13cd354 100644
--- a/tests/MaskCacheTest.cpp
+++ b/tests/MaskCacheTest.cpp
@@ -24,7 +24,7 @@
                        int refcnt, CachedState cacheState, LockedState lockedState) {
     REPORTER_ASSERT(reporter, data->testing_only_getRefCnt() == refcnt);
     REPORTER_ASSERT(reporter, data->testing_only_isInCache() == (kInCache == cacheState));
-    bool isLocked = (data->data() != NULL);
+    bool isLocked = (data->data() != nullptr);
     REPORTER_ASSERT(reporter, isLocked == (lockedState == kLocked));
 }
 
@@ -40,7 +40,7 @@
     SkMask mask;
 
     SkCachedData* data = SkMaskCache::FindAndRef(sigma, style, quality, rrect, &mask, &cache);
-    REPORTER_ASSERT(reporter, NULL == data);
+    REPORTER_ASSERT(reporter, nullptr == data);
 
     size_t size = 256;
     data = cache.newCachedData(size);
@@ -78,7 +78,7 @@
     SkMask mask;
 
     SkCachedData* data = SkMaskCache::FindAndRef(sigma, style, quality, rects, 1, &mask, &cache);
-    REPORTER_ASSERT(reporter, NULL == data);
+    REPORTER_ASSERT(reporter, nullptr == data);
 
     size_t size = 256;
     data = cache.newCachedData(size);