Move platform abstraction to base library

test/cctest/test-conversions.cc

Index: test/cctest/test-conversions.cc
diff --git a/test/cctest/test-conversions.cc b/test/cctest/test-conversions.cc
index 62403ffc62efdd01cd2c9e71013f053f57209144..93bed7f4de13847880f0eacdcc59ed462675e50f 100644
--- a/test/cctest/test-conversions.cc
+++ b/test/cctest/test-conversions.cc
@@ -29,7 +29,7 @@
 
 #include "src/v8.h"
 
-#include "src/platform.h"
+#include "src/base/platform/platform.h"
 #include "test/cctest/cctest.h"
 
 using namespace v8::internal;
@@ -172,9 +172,12 @@ TEST(TrailingJunk) {
 
 TEST(NonStrDecimalLiteral) {
   UnicodeCache uc;
-  CHECK(std::isnan(StringToDouble(&uc, " ", NO_FLAGS, OS::nan_value())));
-  CHECK(std::isnan(StringToDouble(&uc, "", NO_FLAGS, OS::nan_value())));
-  CHECK(std::isnan(StringToDouble(&uc, " ", NO_FLAGS, OS::nan_value())));
+  CHECK(std::isnan(
+      StringToDouble(&uc, " ", NO_FLAGS, v8::base::OS::nan_value())));
+  CHECK(
+      std::isnan(StringToDouble(&uc, "", NO_FLAGS, v8::base::OS::nan_value())));
+  CHECK(std::isnan(
+      StringToDouble(&uc, " ", NO_FLAGS, v8::base::OS::nan_value())));
   CHECK_EQ(0.0, StringToDouble(&uc, "", NO_FLAGS));
   CHECK_EQ(0.0, StringToDouble(&uc, " ", NO_FLAGS));
 }