For BUILD.public, let SkPreConfig.h set SK_RELEASE based on NDEBUG.

tests/AtomicTest.cpp

Index: tests/AtomicTest.cpp
diff --git a/tests/AtomicTest.cpp b/tests/AtomicTest.cpp
index 530fba79d55129d6f599b67156b9bf59549a100c..782f85707460ef20ca317fcaa0894c4454fce799 100644
--- a/tests/AtomicTest.cpp
+++ b/tests/AtomicTest.cpp
@@ -15,7 +15,7 @@ struct AddInfo {
     int timesToAdd;
 };
 
-static int32_t base = 0;
+static int32_t val = 0;
 
 static AddInfo gAdds[] = {
     { 3, 100 },
@@ -26,12 +26,12 @@ static AddInfo gAdds[] = {
 static void addABunchOfTimes(void* data) {
     AddInfo* addInfo = static_cast<AddInfo*>(data);
     for (int i = 0; i < addInfo->timesToAdd; i++) {
-        sk_atomic_add(&base, addInfo->valueToAdd);
+        sk_atomic_add(&val, addInfo->valueToAdd);
     }
 }
 
 DEF_TEST(Atomic, reporter) {
-    int32_t total = base;
+    int32_t total = val;
     SkThread* threads[SK_ARRAY_COUNT(gAdds)];
     for (size_t i = 0; i < SK_ARRAY_COUNT(gAdds); i++) {
         total += gAdds[i].valueToAdd * gAdds[i].timesToAdd;
@@ -47,7 +47,7 @@ DEF_TEST(Atomic, reporter) {
         threads[i]->join();
         delete threads[i];
     }
-    REPORTER_ASSERT(reporter, total == base);
+    REPORTER_ASSERT(reporter, total == val);
     // Ensure that the returned value from sk_atomic_add is correct.
     int32_t valueToModify = 3;
     const int32_t originalValue = valueToModify;