Move platform abstraction to base library

src/base/platform/platform-freebsd.cc

Index: src/base/platform/platform-freebsd.cc
diff --git a/src/platform-freebsd.cc b/src/base/platform/platform-freebsd.cc
similarity index 98%
rename from src/platform-freebsd.cc
rename to src/base/platform/platform-freebsd.cc
index 9e668a8ba647471946cbf3578e811ce74139941c..d7cd9d34de609e1903e0e1003a07870e8d404ace 100644
--- a/src/platform-freebsd.cc
+++ b/src/base/platform/platform-freebsd.cc
@@ -29,12 +29,12 @@
 
 #undef MAP_TYPE
 
-#include "src/platform.h"
-#include "src/utils.h"
+#include "src/base/macros.h"
+#include "src/base/platform/platform.h"
 
 
 namespace v8 {
-namespace internal {
+namespace base {
 
 
 const char* OS::LocalTimezone(double time, TimezoneCache* cache) {
@@ -304,4 +304,4 @@ bool VirtualMemory::HasLazyCommits() {
   return false;
 }
 
-} }  // namespace v8::internal
+} }  // namespace v8::base