Revert 21502 - "Move OS::MemCopy and OS::MemMove out of platform to utils"

src/prettyprinter.cc

Index: src/prettyprinter.cc
diff --git a/src/prettyprinter.cc b/src/prettyprinter.cc
index 2bb7c9465861f2ee51b5342db58234790b0075bf..233d7c2fabeeb21567e4124cb0ef19a34b9c6f2e 100644
--- a/src/prettyprinter.cc
+++ b/src/prettyprinter.cc
@@ -506,7 +506,7 @@ void PrettyPrinter::Print(const char* format, ...) {
       const int slack = 32;
       int new_size = size_ + (size_ >> 1) + slack;
       char* new_output = NewArray<char>(new_size);
-      MemCopy(new_output, output_, pos_);
+      OS::MemCopy(new_output, output_, pos_);
       DeleteArray(output_);
       output_ = new_output;
       size_ = new_size;