Revert of Check for CloseHandle failures even when not debugging

base/memory/shared_memory_win.cc

 // Copyright (c) 2011 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 <aclapi.h>
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 67 matching lines @@
 }
 
 // static
 SharedMemoryHandle SharedMemory::NULLHandle() {
   return NULL;
 }
 
 // static
 void SharedMemory::CloseHandle(const SharedMemoryHandle& handle) {
   DCHECK(handle != NULL);
-  const BOOL result = ::CloseHandle(handle);
-  CHECK(result);
+  ::CloseHandle(handle);
 }
 
 // static
 size_t SharedMemory::GetHandleLimit() {
   // Rounded down from value reported here:
   // http://blogs.technet.com/b/markrussinovich/archive/2009/09/29/3283844.aspx
   return static_cast<size_t>(1 << 23);
 }
 
 // static
@@ skipping 164 matching lines @@
     CloseHandle(mapped_file_);
     mapped_file_ = NULL;
   }
 }
 
 SharedMemoryHandle SharedMemory::handle() const {
   return mapped_file_;
 }
 
 }  // namespace base