Move OS::MemCopy and OS::MemMove out of platform to utils

src/serialize.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "v8.h"
 
 #include "accessors.h"
 #include "api.h"
 #include "bootstrapper.h"
 #include "deoptimizer.h"
@@ skipping 1694 matching lines @@
     }
   }
   // One of the strings in the natives cache should match the resource.  We
   // can't serialize any other kinds of external strings.
   UNREACHABLE();
 }
 
 
 static Code* CloneCodeObject(HeapObject* code) {
   Address copy = new byte[code->Size()];
-  OS::MemCopy(copy, code->address(), code->Size());
+  MemCopy(copy, code->address(), code->Size());
   return Code::cast(HeapObject::FromAddress(copy));
 }
 
 
 static void WipeOutRelocations(Code* code) {
   int mode_mask =
       RelocInfo::kCodeTargetMask |
       RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) |
       RelocInfo::ModeMask(RelocInfo::EXTERNAL_REFERENCE) |
       RelocInfo::ModeMask(RelocInfo::RUNTIME_ENTRY);
@@ skipping 111 matching lines @@
 
 bool SnapshotByteSource::AtEOF() {
   if (0u + length_ - position_ > 2 * sizeof(uint32_t)) return false;
   for (int x = position_; x < length_; x++) {
     if (data_[x] != SerializerDeserializer::nop()) return false;
   }
   return true;
 }
 
 } }  // namespace v8::internal