Remove anonymous namespaces.

No one likes them and we're pretty inconsistent at using them. We're
much better with 'static'.

Change-Id: I65eeffd0fb60633edca30923af0caedb06a0105d
diff --git a/src/java_util_concurrent_atomic_AtomicLong.cc b/src/java_util_concurrent_atomic_AtomicLong.cc
index eda98ac..118b9e4 100644
--- a/src/java_util_concurrent_atomic_AtomicLong.cc
+++ b/src/java_util_concurrent_atomic_AtomicLong.cc
@@ -21,18 +21,14 @@
 
 namespace art {
 
-namespace {
-
-jboolean AtomicLong_VMSupportsCS8(JNIEnv*, jclass) {
+static jboolean AtomicLong_VMSupportsCS8(JNIEnv*, jclass) {
   return JNI_TRUE;
 }
 
-JNINativeMethod gMethods[] = {
+static JNINativeMethod gMethods[] = {
   NATIVE_METHOD(AtomicLong, VMSupportsCS8, "()Z"),
 };
 
-}  // namespace
-
 void register_java_util_concurrent_atomic_AtomicLong(JNIEnv* env) {
   jniRegisterNativeMethods(env, "java/util/concurrent/atomic/AtomicLong", gMethods, NELEM(gMethods));
 }