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

src/hydrogen-check-elimination.cc

 // Copyright 2013 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 "hydrogen-check-elimination.h"
 
 #include "hydrogen-alias-analysis.h"
 #include "hydrogen-flow-engine.h"
 
 #define GLOBAL 1
@@ skipping 604 matching lines @@
 
     // Preserve the age of the entries by moving the older entries to the end.
     if (cursor_ == size_) return;  // Cursor already points at end.
     if (cursor_ != 0) {
       // | L = oldest |   R = newest   |       |
       //              ^ cursor         ^ size  ^ MAX
       HCheckTableEntry tmp_entries[kMaxTrackedObjects];
       int L = cursor_;
       int R = size_ - cursor_;
 
-      OS::MemMove(&tmp_entries[0], &entries_[0], L * sizeof(HCheckTableEntry));
-      OS::MemMove(&entries_[0], &entries_[L], R * sizeof(HCheckTableEntry));
-      OS::MemMove(&entries_[R], &tmp_entries[0], L * sizeof(HCheckTableEntry));
+      MemMove(&tmp_entries[0], &entries_[0], L * sizeof(HCheckTableEntry));
+      MemMove(&entries_[0], &entries_[L], R * sizeof(HCheckTableEntry));
+      MemMove(&entries_[R], &tmp_entries[0], L * sizeof(HCheckTableEntry));
     }
 
     cursor_ = size_;  // Move cursor to end.
   }
 
   static void Print(HCheckTable* table) {
     if (table == NULL) {
       PrintF("  unreachable\n");
       return;
     }
@@ skipping 158 matching lines @@
   PRINT_STAT(removed_cho);
   PRINT_STAT(narrowed);
   PRINT_STAT(loads);
   PRINT_STAT(empty);
   PRINT_STAT(compares_true);
   PRINT_STAT(compares_false);
   PRINT_STAT(transitions);
 }
 
 } }  // namespace v8::internal