low hanging calloc fruit

src/core/SkTDynamicHash.h

Index: src/core/SkTDynamicHash.h
diff --git a/src/core/SkTDynamicHash.h b/src/core/SkTDynamicHash.h
index 47412c34b12e2cee6233371ce5f7d890a1edbb1d..4cb44204c85f61130354d25c78c7924249fe66f8 100644
--- a/src/core/SkTDynamicHash.h
+++ b/src/core/SkTDynamicHash.h
@@ -92,9 +92,7 @@ private:
     static T* Deleted() { return reinterpret_cast<T*>(1); }  // Also an invalid pointer.
 
     static T** AllocArray(int capacity) {
-        T** array = (T**)sk_malloc_throw(sizeof(T*) * capacity);
-        sk_bzero(array, sizeof(T*) * capacity);  // All cells == Empty().
-        return array;
+        return (T**)sk_calloc_throw(sizeof(T*) * capacity);  // All cells == Empty().
     }
 
     void reset(int capacity) {