Properly honor base::SharedMemory semantics for name="" to mean...

base/shared_memory_win.cc

 // Copyright (c) 2006-2008 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/shared_memory.h"
 
 #include "base/logging.h"
 #include "base/win_util.h"
 
 namespace base {
@@ skipping 48 matching lines @@
 
   // Check if the shared memory pre-exists.
   if (GetLastError() == ERROR_ALREADY_EXISTS && !open_existing) {
     Close();
     return false;
   }
   max_size_ = size;
   return true;
 }
 
+bool SharedMemory::Delete(const std::wstring& name) {
+  // intentionally empty -- there is nothing for us to do on Windows.
+  return true;
+}
+
 bool SharedMemory::Open(const std::wstring &name, bool read_only) {
   DCHECK(mapped_file_ == NULL);
 
   name_ = name;
   read_only_ = read_only;
   mapped_file_ = OpenFileMapping(
       read_only_ ? FILE_MAP_READ : FILE_MAP_ALL_ACCESS, false,
       name.empty() ? NULL : name.c_str());
   if (mapped_file_ != NULL) {
     // Note: size_ is not set in this case.
@@ skipping 78 matching lines @@
   }
   WaitForSingleObject(lock_, INFINITE);
 }
 
 void SharedMemory::Unlock() {
   DCHECK(lock_ != NULL);
   ReleaseMutex(lock_);
 }
 
 }  // namespace base