Getting rid of OS::StrDup and OS::StrNDup which were sometimes misused.

src/platform-macos.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 184 matching lines @@
 char* OS::StrChr(char* str, int c) {
   return strchr(str, c);
 }
 
 
 void OS::StrNCpy(Vector<char> dest, const char* src, size_t n) {
   strncpy(dest.start(), src, n);
 }
 
 
-char* OS::StrDup(const char* str) {
-  return strdup(str);
-}
-
-
-char* OS::StrNDup(const char* str, size_t n) {
-  // Stupid implementation of strndup since macos isn't born with
-  // one.
-  size_t len = strlen(str);
-  if (len <= n) {
-    return StrDup(str);
-  }
-  char* result = new char[n+1];
-  size_t i;
-  for (i = 0; i <= n; i++) {
-    result[i] = str[i];
-  }
-  result[i] = '\0';
-  return result;
-}
-
-
 // We keep the lowest and highest addresses mapped as a quick way of
 // determining that pointers are outside the heap (used mostly in assertions
 // and verification).  The estimate is conservative, ie, not all addresses in
 // 'allocated' space are actually allocated to our heap.  The range is
 // [lowest, highest), inclusive on the low and and exclusive on the high end.
 static void* lowest_ever_allocated = reinterpret_cast<void*>(-1);
 static void* highest_ever_allocated = reinterpret_cast<void*>(0);
 
 
 static void UpdateAllocatedSpaceLimits(void* address, int size) {
@@ skipping 590 matching lines @@
   }
 
   // This sampler is no longer the active sampler.
   active_sampler_ = NULL;
   active_ = false;
 }
 
 #endif  // ENABLE_LOGGING_AND_PROFILING
 
 } }  // namespace v8::internal