Switch to using '-t ios' for grit

chrome/app/resources/locale_settings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <grit latest_public_release="0" current_release="1">
   <outputs>
     <output filename="grit/locale_settings.h" type="rc_header">
       <emit emit_type='prepend'></emit>
     </output>
     <output filename="locale_settings_am.pak" type="data_package" lang="am" />
     <output filename="locale_settings_ar.pak" type="data_package" lang="ar" />
     <if expr="pp_ifdef('use_third_party_translations')">
       <output filename="locale_settings_ast.pak" type="data_package" lang="ast" />
@@ skipping 57 matching lines @@
     <output filename="locale_settings_lt.pak" type="data_package" lang="lt" />
     <output filename="locale_settings_lv.pak" type="data_package" lang="lv" />
     <output filename="locale_settings_ml.pak" type="data_package" lang="ml" />
     <output filename="locale_settings_mr.pak" type="data_package" lang="mr" />
     <output filename="locale_settings_ms.pak" type="data_package" lang="ms" />
     <output filename="locale_settings_nl.pak" type="data_package" lang="nl" />
     <!-- The translation console uses 'no' for Norwegian Bokmål. It should
          be 'nb'. -->
     <output filename="locale_settings_nb.pak" type="data_package" lang="no" />
     <output filename="locale_settings_pl.pak" type="data_package" lang="pl" />
-    <if expr="pp_ifdef('ios')">
+    <if expr="is_ios">
       <!-- iOS uses pt for pt-BR -->
       <output filename="locale_settings_pt.pak" type="data_package" lang="pt-BR" />
     </if>
-    <if expr="not pp_ifdef('ios')">
+    <if expr="not is_ios">
       <output filename="locale_settings_pt-BR.pak" type="data_package" lang="pt-BR" />
     </if>
     <output filename="locale_settings_pt-PT.pak" type="data_package" lang="pt-PT" />
     <output filename="locale_settings_ro.pak" type="data_package" lang="ro" />
     <output filename="locale_settings_ru.pak" type="data_package" lang="ru" />
     <output filename="locale_settings_sk.pak" type="data_package" lang="sk" />
     <output filename="locale_settings_sl.pak" type="data_package" lang="sl" />
     <output filename="locale_settings_sr.pak" type="data_package" lang="sr" />
     <output filename="locale_settings_sv.pak" type="data_package" lang="sv" />
     <output filename="locale_settings_sw.pak" type="data_package" lang="sw" />
@@ skipping 250 matching lines @@
       <!-- The URL for the webstore. -->
       <message name="IDS_WEBSTORE_URL" translateable="false">
         https://chrome.google.com/webstore?hl=[GRITLANGCODE]
       </message>
 
       <!-- The URL for Google Chrome welcome page. This is used for the pre -->
       <!-- populated thumbnails. -->
       <message name="IDS_CHROME_WELCOME_URL" translateable="false">
         http://www.google.com/chrome/intl/[GRITLANGCODE]/welcome.html
       </message>
-      <if expr="is_android or pp_ifdef('ios')">
+      <if expr="is_android or is_ios">
         <message name="IDS_MOBILE_WELCOME_URL" translateable="false">
           chrome://welcome
         </message>
       </if>
 
       <!-- The URL for Google Chrome privacy policy. -->
-      <if expr="pp_ifdef('ios')">
+      <if expr="is_ios">
         <message name="IDS_PRIVACY_POLICY_URL" translateable="false">
           http://www.google.com/chrome/intl/[GRITLANGCODE]/privacy.html
         </message>
       </if>
 
       <!-- The URLs for Adobe Flash settings. We cannot rely on -->
       <!-- the automatic expansion of GRITLANGCODE here because Adobe does -->
       <!-- not use the language/locale code. -->
       <message name="IDS_FLASH_STORAGE_URL" use_name_for_id="true">
         http://www.adobe.com/go/settmgr_storage_en
@@ skipping 12 matching lines @@
       <message name="IDS_SYNC_UNRECOVERABLE_ERROR_HELP_URL" translateable="false">
         https://www.google.com/support/chrome/bin/answer.py?answer=1181420
       </message>
 
       <!-- The width for the "create application shortcuts" dialog in characters. -->
       <message name="IDS_CREATE_SHORTCUTS_DIALOG_WIDTH_CHARS" use_name_for_id="true">
         65
       </message>
 
       <!-- The width and height for the "create application shortcuts error" dialog. -->
-      <if expr="is_posix and not is_macosx">
+      <if expr="is_posix and not is_macosx and not is_ios">
         <message name="IDS_CREATE_SHORTCUTS_ERROR_DIALOG_WIDTH_CHARS" use_name_for_id="true">
          60
         </message>
         <message name="IDS_CREATE_SHORTCUTS_ERROR_DIALOG_HEIGHT_LINES" use_name_for_id="true">
          6
         </message>
       </if>
 
       <!-- The width of the make-default-in-metro dialog in characters. -->
       <message name="IDS_METRO_FLOW_WIDTH_CHARS" use_name_for_id="true">
@@ skipping 11 matching lines @@
       </message>
 
       <if expr="pp_ifdef('chromeos')">
         <message name="IDS_FACTORY_RESET_HELP_URL" translateable="false">
           http://support.google.com/chromeos/bin/answer.py?answer=183084&amp;hl=[GRITLANGCODE]
         </message>
       </if>
     </messages>
   </release>
 </grit>