Remove unnecessary DCHECK causing unit test failure....

base/win/registry.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/win/registry.h"
 
 #include <shlwapi.h>
 
 #include "base/logging.h"
 #include "base/threading/thread_restrictions.h"
@@ skipping 201 matching lines @@
     }
   }
 
   return result;
 }
 
 GONG RegKey::WriteValue(const wchar_t* name, const void * data,
                         DWORD dsize, DWORD dtype) {
   base::ThreadRestrictions::AssertIOAllowed();
   DCHECK(data);
-  DCHECK(key_);
 
   LONG result = RegSetValueEx(key_, name, 0, dtype,
       reinterpret_cast<LPBYTE>(const_cast<void*>(data)), dsize);
   return result;
 }
 
 GONG RegKey::WriteValue(const wchar_t * name, const wchar_t* value) {
   return WriteValue(name, value,
       static_cast<DWORD>(sizeof(*value) * (wcslen(value) + 1)), REG_SZ);
 }
@@ skipping 170 matching lines @@
     if (ERROR_SUCCESS == r)
       return true;
   }
 
   name_[0] = '\0';
   return false;
 }
 
 }  // namespace win
 }  // namespace base