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

build/common.gypi

 # 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.
 
 # IMPORTANT:
 # Please don't directly include this file if you are building via gyp_chromium,
 # since gyp_chromium is automatically forcing its inclusion.
 {
   'variables': {
     # .gyp files should set chromium_code to 1 if they build Chromium-specific
@@ skipping 23 matching lines @@
       # on 'buildtype' (i.e. we don't care about saving symbols for non-Official
       # builds).
       'buildtype%': 'Dev',
 
       # The architecture that we're building on.
       'target_arch%': 'ia32',
 
       # We do want to build Chromium with Breakpad support in certain
       # situations. I.e. for Chrome bot.
       'linux_chromium_breakpad%': 0,
+
+      # By default, Linux does not use views. To turn on views in Linux,
+      # set the variable GYP_DEFINES to "toolkit_views=1", or modify
+      # ~/.gyp/include.gypi .
+      'toolkit_views%': 0,
+
+      # Defaults to a desktop build, overridden via command line/env.
+      'chromeos%': 0,
     },
 
     # Define branding and buildtype on the basis of their settings within the
     # variables sub-dict above, unless overridden.
     'branding%': '<(branding)',
     'buildtype%': '<(buildtype)',
     'target_arch%': '<(target_arch)',
+    'toolkit_views%': '<(toolkit_views)',
+    'chromeos%': '<(chromeos)',
 
     # Override chromium_mac_pch and set it to 0 to suppress the use of
     # precompiled headers on the Mac.  Prefix header injection may still be
     # used, but prefix headers will not be precompiled.  This is useful when
     # using distcc to distribute a build to compile slaves that don't
     # share the same compiler executable as the system driving the compilation,
     # because precompiled headers rely on pointers into a specific compiler
     # executable's image.  Setting this to 0 is needed to use an experimental
     # Linux-Mac cross compiler distcc farm.
     'chromium_mac_pch%': 1,
@@ skipping 50 matching lines @@
     # Yes(1) means set use the common linker options.
     'msvs_use_common_linker_extras%': 1,
 
     # TODO(sgk): eliminate this if possible.
     # It would be nicer to support this via a setting in 'target_defaults'
     # in chrome/app/locales/locales.gypi overriding the setting in the
     # 'Debug' configuration in the 'target_defaults' dict below,
     # but that doesn't work as we'd like.
     'msvs_debug_link_incremental%': '2',
 
-    # By default linux does not use views. To turn on views in Linux
-    # set the variable GYP_DEFINES to "toolkit_views=1", or modify
-    # ~/.gyp/include.gypi .
-    'toolkit_views%': 0,
-
-    'chromeos%': 0,
-
     # The system root for cross-compiles. Default: none.
     'sysroot%': '',
 
     # This is the location of the sandbox binary. Chrome looks for this before
     # running the zygote process. If found, and SUID, it will be used to
     # sandbox the zygote process and, thus, all renderer processes.
     'linux_sandbox_path%': '',
 
     # Set this to true to enable SELinux support.
     'selinux%': 0,
+    
+    # Set to select the Title Case versions of strings in GRD files.
+    'use_titlecase_in_grd_files%': 0,
 
     'conditions': [
       ['OS=="linux"', {
         'conditions': [
           ['branding=="Chrome" or linux_chromium_breakpad==1', {
             'linux_breakpad%': 1,
           }, {
             'linux_breakpad%': 0,
           }],
+          ['toolkit_views==0', {
+            # GTK wants Title Case strings
+            'use_titlecase_in_grd_files%': 1,
+          }],
         ],
       }],  # OS=="linux"
       ['OS=="mac"', {
+        # Mac wants Title Case strings
+        'use_titlecase_in_grd_files%': 1,
         'conditions': [
           # mac_product_name is set to the name of the .app bundle as it should
           # appear on disk.  This duplicates data from
           # chrome/app/theme/chromium/BRANDING and
           # chrome/app/theme/google_chrome/BRANDING, but is necessary to get
           # these names into the build system.
           ['branding=="Chrome"', {
             'mac_product_name%': 'Google Chrome',
           }, { # else: branding!="Chrome"
             'mac_product_name%': 'Chromium',
@@ skipping 680 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',
   },
 }