Adding a GYP variable to indicate if a build wants Title Case strings or not....

chrome/chrome.gyp

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'chromium_code': 1,
 
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
@@ skipping 196 matching lines @@
             # files, which angers scons and confuses vstudio.
             # One alternative would be to turn this into several actions,
             # but that would be rather verbose.
           ],
           'action': ['python', '../tools/grit/grit.py', '-i',
             '<(RULE_INPUT_PATH)',
             'build', '-o', '<(grit_out_dir)',
             '-D', '<(chrome_build)',
             '-E', '<(branded_env)',
           ],
+          'conditions': [
+            ['use_titlecase_in_grd_files==1', {
+              'action': ['-D', 'use_titlecase'],
+            }],
+          ],
           'message': 'Generating resources from <(RULE_INPUT_PATH)',
         },
       ],
       'sources': [
         '<@(chrome_resources_grds)',
         '<@(chrome_resources_inputs)',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '<(grit_out_dir)',
@@ skipping 60 matching lines @@
             # See comment in chrome_resources as to why.
           ],
           'action': ['python', '../tools/grit/grit.py', '-i',
                     '<(RULE_INPUT_PATH)',
                     'build', '-o', '<(grit_out_dir)',
                     '-D', '<(chrome_build)'],
           'conditions': [
             ['chromeos==1', {
               'action': ['-D', 'chromeos'],
             }],
+            ['use_titlecase_in_grd_files==1', {
+              'action': ['-D', 'use_titlecase'],
+            }],
           ],
           'message': 'Generating resources from <(RULE_INPUT_PATH)',
         },
       ],
       'sources': [
         '<@(chrome_strings_grds)',
         '<@(chrome_strings_inputs)',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
@@ skipping 34 matching lines @@
           'action': [
             'python', '<(grit_path)',
             '-i', '<(input_path)', 'build',
             '-o', '<(grit_out_dir)',
             '-D', '<(chrome_build)'
           ],
           'conditions': [
             ['chromeos==1', {
               'action': ['-D', 'chromeos'],
             }],
+            ['use_titlecase_in_grd_files==1', {
+              'action': ['-D', 'use_titlecase'],
+            }],
           ],
           'message': 'Generating resources from <(input_path)',
         },
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '<(grit_out_dir)',
         ],
       },
       'conditions': [
@@ skipping 6240 matching lines @@
               'dependencies': [
                 '../third_party/pthreads-win32/pthreads.gyp:pthreads',
               ],
             }],
           ],
         },
       ],  # targets when chrome_personalization==1 and use_syncapi_stub==0
     }],
   ],  # 'conditions'
 }