Cleanup: Mark conflict UI resources as Windows-only.

chrome/app/chromium_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- This file contains definitions of strings that are distribution specific.
 These strings will not be translated and only english versions will
 be available for now. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/chromium_strings.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 580 matching lines @@
       <message name="IDS_TRY_TOAST_TRY_OPT" desc="First option radio button on the dialog to try chrome">
         Try it out, it's already installed
       </message>
       <message name="IDS_TRY_TOAST_CANCEL" desc="Try chrome again dialog Cancel button">
         Don't bug me
       </message>
       <message name="IDS_TRY_TOAST_WHY" desc="Text of the url link that explains why this dialog is being shown">
         Why am I seeing this?
       </message>
       <!-- about:conflicts strings -->
-      <message name="IDS_CONFLICTS_CHECK_PAGE_TITLE_LONG" desc="The long title on the compatibility page">
-        Modules loaded into Chromium
-      </message>
-      <message name="IDS_CONFLICTS_CHECK_WARNING_CONFIRMED" desc="Warning label on the compatibility page">
-        This module is known to conflict with Chromium.
-      </message>
-      <message name="IDS_CONFLICTS_CHECK_WARNING_SUSPECTED" desc="Warning label on the compatibility page">
-        A module with the same name has been known to conflict with Chromium.
-      </message>
+      <if expr="is_win">
+        <message name="IDS_CONFLICTS_CHECK_PAGE_TITLE_LONG" desc="The long title on the compatibility page">
+          Modules loaded into Chromium
+        </message>
+        <message name="IDS_CONFLICTS_CHECK_WARNING_CONFIRMED" desc="Warning label on the compatibility page">
+          This module is known to conflict with Chromium.
+        </message>
+        <message name="IDS_CONFLICTS_CHECK_WARNING_SUSPECTED" desc="Warning label on the compatibility page">
+          A module with the same name has been known to conflict with Chromium.
+        </message>
+      </if>
       <!-- chrome://crashes strings -->
       <message name="IDS_CRASHES_DISABLED_MESSAGE" desc="The explanatory message for chrome://crashes when crash reporting is disabled">
         Crash reporting is not available in Chromium.
       </message>
       <!-- Page Info bubble -->
       <message name="IDS_PAGE_INFO_INTERNAL_PAGE" desc="Message to display in the page info bubble when the page you are on is a chrome:// page or about:something.">
         You are viewing a secure Chromium page.
       </message>
       <!-- Print Preview -->
       <message name="IDS_PRINT_PREVIEW_NO_PLUGIN" desc="Message to display when the PDF viewer is missing.">
@@ skipping 577 matching lines @@
         <message name="IDS_NEW_TAB_OTR_EXTENSIONS_MESSAGE"
                  desc="Explanation in a new OTR window that extensions have been disabled while in OTR.">
           Because Chromium does not control how extensions handle your personal data, all extensions have been disabled for incognito windows. You can reenable them individually in the
           <ph name="BEGIN_LINK">&lt;a href="$1"&gt;</ph>extensions manager<ph name="END_LINK">&lt;/a&gt;<ex>&lt;/a&gt;</ex></ph>.
         </message>
       </if>
 
     </messages>
   </release>
 </grit>