Fix a typo in the comment regarding /MT vs /MD

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 1106 matching lines @@
       'enable_wexit_time_destructors%': '<(enable_wexit_time_destructors)',
 
       # Only used by Windows build for now.  Can be used to build into a
       # differet output directory, e.g., a build_dir_prefix of VS2010_ would
       # output files in src/build/VS2010_{Debug,Release}.
       'build_dir_prefix%': '',
 
       'conditions': [
         ['OS=="win" and component=="shared_library"', {
           # See http://msdn.microsoft.com/en-us/library/aa652367.aspx
-          'win_release_RuntimeLibrary%': '2', # 2 = /MT (nondebug DLL)
-          'win_debug_RuntimeLibrary%': '3',   # 3 = /MTd (debug DLL)
+          'win_release_RuntimeLibrary%': '2', # 2 = /MD (nondebug DLL)
+          'win_debug_RuntimeLibrary%': '3',   # 3 = /MDd (debug DLL)
         }, {
           # See http://msdn.microsoft.com/en-us/library/aa652367.aspx
           'win_release_RuntimeLibrary%': '0', # 0 = /MT (nondebug static)
           'win_debug_RuntimeLibrary%': '1',   # 1 = /MTd (debug static)
         }],
       ],
     },
     'conditions': [
       ['OS=="win" and "<(msbuild_toolset)"!=""', {
         'msbuild_toolset': '<(msbuild_toolset)',
@@ skipping 1776 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',
   },
 }