Move platform abstraction to base library

src/mksnapshot.cc

Index: src/mksnapshot.cc
diff --git a/src/mksnapshot.cc b/src/mksnapshot.cc
index de6ffb82afc81b15a5dc10d128872e06e524a726..69306e14dc5ee79b9d72b7e7b7a0a6e154d7293f 100644
--- a/src/mksnapshot.cc
+++ b/src/mksnapshot.cc
@@ -12,11 +12,11 @@
 #include "src/v8.h"
 
 #include "src/assembler.h"
+#include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
 #include "src/flags.h"
 #include "src/list.h"
 #include "src/natives.h"
-#include "src/platform.h"
 #include "src/serialize.h"
 
 
@@ -134,7 +134,7 @@ class SnapshotWriter {
   void WriteFilePrefix() const {
     fprintf(fp_, "// Autogenerated snapshot file. Do not edit.\n\n");
     fprintf(fp_, "#include \"src/v8.h\"\n");
-    fprintf(fp_, "#include \"src/platform.h\"\n\n");
+    fprintf(fp_, "#include \"src/base/platform/platform.h\"\n\n");
     fprintf(fp_, "#include \"src/snapshot.h\"\n\n");
     fprintf(fp_, "namespace v8 {\n");
     fprintf(fp_, "namespace internal {\n\n");
@@ -231,7 +231,7 @@ class SnapshotWriter {
   }
 
   FILE* GetFileDescriptorOrDie(const char* filename) {
-    FILE* fp = i::OS::FOpen(filename, "wb");
+    FILE* fp = base::OS::FOpen(filename, "wb");
     if (fp == NULL) {
       i::PrintF("Unable to open file \"%s\" for writing.\n", filename);
       exit(1);
@@ -363,7 +363,7 @@ int main(int argc, char** argv) {
       HandleScope scope(isolate);
       v8::Context::Scope cscope(v8::Local<v8::Context>::New(isolate, context));
       const char* name = i::FLAG_extra_code;
-      FILE* file = i::OS::FOpen(name, "rb");
+      FILE* file = base::OS::FOpen(name, "rb");
       if (file == NULL) {
         fprintf(stderr, "Failed to open '%s': errno %d\n", name, errno);
         exit(1);