Move atomic-utils.h into base/

test/unittests/base/atomic-utils-unittest.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <limits.h>
 
-#include "src/atomic-utils.h"
+#include "src/base/atomic-utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace v8 {
-namespace internal {
+namespace base {
 
 TEST(AtomicNumber, Constructor) {
   // Test some common types.
   AtomicNumber<int> zero_int;
   AtomicNumber<size_t> zero_size_t;
   AtomicNumber<intptr_t> zero_intptr_t;
   EXPECT_EQ(0, zero_int.Value());
   EXPECT_EQ(0U, zero_size_t.Value());
   EXPECT_EQ(0, zero_intptr_t.Value());
 }
@@ skipping 184 matching lines @@
   AtomicEnumSet<TestSetValue> a;
   AtomicEnumSet<TestSetValue> b;
   a.Add(kAA);
   EXPECT_FALSE(a == b);
   EXPECT_TRUE(a != b);
   b.Add(kAA);
   EXPECT_TRUE(a == b);
   EXPECT_FALSE(a != b);
 }
 
-}  // namespace internal
+}  // namespace base
 }  // namespace v8