Cleanup: Remove unused SharedMemory ctor.

base/memory/shared_memory_mac.cc

 // Copyright (c) 2012 The Chromium 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 "base/memory/shared_memory.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <mach/mach_vm.h>
 #include <sys/mman.h>
@@ skipping 189 matching lines @@
 
 SharedMemory::SharedMemory(const SharedMemoryHandle& handle, bool read_only)
     : shm_(handle),
       mapped_memory_mechanism_(SharedMemoryHandle::POSIX),
       readonly_mapped_file_(-1),
       mapped_size_(0),
       memory_(NULL),
       read_only_(read_only),
       requested_size_(0) {}
 
-SharedMemory::SharedMemory(const SharedMemoryHandle& handle,
-                           bool read_only,
-                           ProcessHandle process)
-    : mapped_memory_mechanism_(SharedMemoryHandle::POSIX),
-      readonly_mapped_file_(-1),
-      mapped_size_(0),
-      memory_(NULL),
-      read_only_(read_only),
-      requested_size_(0) {
-  // We don't handle this case yet (note the ignored parameter); let's die if
-  // someone comes calling.
-  NOTREACHED();
-}
-
 SharedMemory::~SharedMemory() {
   Unmap();
   Close();
 }
 
 // static
 bool SharedMemory::IsHandleValid(const SharedMemoryHandle& handle) {
   return handle.IsValid();
 }
 
@@ skipping 257 matching lines @@
 
   if (close_self) {
     Unmap();
     Close();
   }
 
   return true;
 }
 
 }  // namespace base