Move platform abstraction to base library

src/base/platform/platform-solaris.cc

Index: src/base/platform/platform-solaris.cc
diff --git a/src/platform-solaris.cc b/src/base/platform/platform-solaris.cc
similarity index 98%
rename from src/platform-solaris.cc
rename to src/base/platform/platform-solaris.cc
index 4803531b733e93c8fbc04242184a7e3d1a1507c5..992a97b7f9c0265c0c68c3da5eefaf1b7ffe53b5 100644
--- a/src/platform-solaris.cc
+++ b/src/base/platform/platform-solaris.cc
@@ -27,8 +27,8 @@
 
 #undef MAP_TYPE
 
-#include "src/platform.h"
-#include "src/utils.h"
+#include "src/base/macros.h"
+#include "src/base/platform/platform.h"
 
 
 // It seems there is a bug in some Solaris distributions (experienced in
@@ -52,7 +52,7 @@ int signbit(double x) {
 #endif  // signbit
 
 namespace v8 {
-namespace internal {
+namespace base {
 
 
 const char* OS::LocalTimezone(double time, TimezoneCache* cache) {
@@ -276,4 +276,4 @@ bool VirtualMemory::HasLazyCommits() {
   return false;
 }
 
-} }  // namespace v8::internal
+} }  // namespace v8::base