[Win] Add option to reauthenticate the OS user before revealing passwords.

build/common.gypi

 # 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   # Variables expected to be overriden on the GYP command line (-D) or by
   # ~/.gyp/include.gypi.
@@ skipping 2489 matching lines @@
               'comdlg32.lib',
               'advapi32.lib',
               'shell32.lib',
               'ole32.lib',
               'oleaut32.lib',
               'user32.lib',
               'uuid.lib',
               'odbc32.lib',
               'odbccp32.lib',
               'delayimp.lib',
+              'credui.lib',
             ],
           },
         },
       },
       'x86_Base': {
         'abstract': 1,
         'msvs_settings': {
           'VCLinkerTool': {
             'TargetMachine': '1',
           },
@@ skipping 2207 matching lines @@
     # settings in target dicts.  SYMROOT is a special case, because many other
     # Xcode variables depend on it, including variables such as
     # PROJECT_DERIVED_FILE_DIR.  When a source group corresponding to something
     # like PROJECT_DERIVED_FILE_DIR is added to a project, in order for the
     # files to appear (when present) in the UI as actual files and not red
     # red "missing file" proxies, the correct path to PROJECT_DERIVED_FILE_DIR,
     # and therefore SYMROOT, needs to be set at the project level.
     'SYMROOT': '<(DEPTH)/xcodebuild',
   },
 }