Style Change: NULL->nullptr

bench/ImageCacheBench.cpp

Index: bench/ImageCacheBench.cpp
diff --git a/bench/ImageCacheBench.cpp b/bench/ImageCacheBench.cpp
index 4d71cf019038c5a597ee5e4e56d9d9b5a3761ecb..fe118685233371ce051d3313573001a2308defce 100644
--- a/bench/ImageCacheBench.cpp
+++ b/bench/ImageCacheBench.cpp
@@ -27,7 +27,7 @@ struct TestRec : public SkResourceCache::Rec {
     const Key& getKey() const override { return fKey; }
     size_t bytesUsed() const override { return sizeof(fKey) + sizeof(fValue); }
     const char* getCategory() const override { return "imagecachebench-test"; }
-    SkDiscardableMemory* diagnostic_only_getDiscardable() const override { return NULL; }
+    SkDiscardableMemory* diagnostic_only_getDiscardable() const override { return nullptr; }
 
     static bool Visitor(const SkResourceCache::Rec&, void*) {
         return true;
@@ -63,7 +63,7 @@ protected:
         TestKey key(-1);
         // search for a miss (-1)
         for (int i = 0; i < loops; ++i) {
-            SkDEBUGCODE(bool found =) fCache.find(key, TestRec::Visitor, NULL);
+            SkDEBUGCODE(bool found =) fCache.find(key, TestRec::Visitor, nullptr);
             SkASSERT(!found);
         }
     }