Add missing base::lock usage.

chrome/browser/enumerate_modules_model_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 "chrome/browser/enumerate_modules_model_win.h"
 
 #include <Tlhelp32.h>
 #include <wintrust.h>
 
 #include "app/l10n_util.h"
@@ skipping 41 matching lines @@
   if (a.location == b.location)
     return a.name < b.name;
 
   return a.location < b.location;
 }
 
 namespace {
 
 // Used to protect the LoadedModuleVector which is accessed
 // from both the UI thread and the FILE thread.
-Lock* lock = NULL;
+base::Lock* lock = NULL;
 
 // A struct to help de-duping modules before adding them to the enumerated
 // modules vector.
 struct FindModule {
  public:
   explicit FindModule(const ModuleEnumerator::Module& x)
     : module(x) {}
   bool operator()(const ModuleEnumerator::Module& module_in) const {
     return (module.location == module_in.location) &&
            (module.name == module_in.name);
@@ skipping 806 matching lines @@
   GenerateHash(WideToUTF8(module.name), &filename);
   GenerateHash(WideToUTF8(module.location), &location);
   GenerateHash(WideToUTF8(module.description), &description);
   GenerateHash(WideToUTF8(module.digital_signer), &signer);
 
   string16 url = l10n_util::GetStringFUTF16(IDS_HELP_CENTER_VIEW_CONFLICTS,
       ASCIIToUTF16(filename), ASCIIToUTF16(location),
       ASCIIToUTF16(description), ASCIIToUTF16(signer));
   return GURL(UTF16ToUTF8(url));
 }