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

test/base-unittests/sys-info-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/sys-info.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-#if V8_OS_NACL
-#define DISABLE_ON_NACL(Name) DISABLED_##Name
-#else
-#define DISABLE_ON_NACL(Name) Name
-#endif
-
-namespace v8 {
-namespace base {
-
-TEST(SysInfoTest, NumberOfProcessors) {
-  EXPECT_LT(0, SysInfo::NumberOfProcessors());
-}
-
-
-TEST(SysInfoTest, DISABLE_ON_NACL(AmountOfPhysicalMemory)) {
-  EXPECT_LT(0, SysInfo::AmountOfPhysicalMemory());
-}
-
-
-TEST(SysInfoTest, AmountOfVirtualMemory) {
-  EXPECT_LE(0, SysInfo::AmountOfVirtualMemory());
-}
-
-}  // namespace base
-}  // namespace v8