Merge base unit tests into src to be in line with Chrome.

test/base-unittests/cpu-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 "src/base/cpu.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace v8 {
-namespace base {
-
-TEST(CPUTest, FeatureImplications) {
-  CPU cpu;
-
-  // ia32 and x64 features
-  EXPECT_TRUE(!cpu.has_sse() || cpu.has_mmx());
-  EXPECT_TRUE(!cpu.has_sse2() || cpu.has_sse());
-  EXPECT_TRUE(!cpu.has_sse3() || cpu.has_sse2());
-  EXPECT_TRUE(!cpu.has_ssse3() || cpu.has_sse3());
-  EXPECT_TRUE(!cpu.has_sse41() || cpu.has_sse3());
-  EXPECT_TRUE(!cpu.has_sse42() || cpu.has_sse41());
-
-  // arm features
-  EXPECT_TRUE(!cpu.has_vfp3_d32() || cpu.has_vfp3());
-}
-
-
-TEST(CPUTest, RequiredFeatures) {
-  CPU cpu;
-
-#if V8_HOST_ARCH_ARM
-  EXPECT_TRUE(cpu.has_fpu());
-#endif
-
-#if V8_HOST_ARCH_IA32
-  EXPECT_TRUE(cpu.has_fpu());
-  EXPECT_TRUE(cpu.has_sahf());
-#endif
-
-#if V8_HOST_ARCH_X64
-  EXPECT_TRUE(cpu.has_fpu());
-  EXPECT_TRUE(cpu.has_cmov());
-  EXPECT_TRUE(cpu.has_mmx());
-  EXPECT_TRUE(cpu.has_sse());
-  EXPECT_TRUE(cpu.has_sse2());
-#endif
-}
-
-}  // namespace base
-}  // namespace v8