Use Courier New for Arabic monospace text on Windows

Before DirectWrite, default monospace font was Courier New but while
adding support for DirectWrite, it is switched to Consolas which lacks
Arabic glyphs. This is to improve the situation.

BUG=466754

Review URL: https://codereview.chromium.org/1013653002

Cr-Commit-Position: refs/heads/master@{#321446}

chrome/app/resources/locale_settings_win.grd

@@ -163,6 +163,12 @@
         Times New Roman
       </message>
 
+      <!-- The default value for |WebPreference::fixed_font_family_map| for
+           Arabic script. -->
+      <message name="IDS_FIXED_FONT_FAMILY_ARABIC" use_name_for_id="true">
+        Courier New
+      </message>
+
       <!-- The default value for |WebPreference::fixed_font_family_map| for
            Cyrillic script. -->
       <message name="IDS_FIXED_FONT_FAMILY_CYRILLIC" use_name_for_id="true">

chrome/browser/ui/prefs/prefs_tab_helper.cc

@@ -214,6 +214,7 @@ const FontDefault kFontDefaults[] = {
   { prefs::kWebKitFixedFontFamilyTraditionalHan,
     IDS_FIXED_FONT_FAMILY_TRADITIONAL_HAN },
 #elif defined(OS_WIN)
+  { prefs::kWebKitFixedFontFamilyArabic, IDS_FIXED_FONT_FAMILY_ARABIC },
   { prefs::kWebKitSansSerifFontFamilyArabic,
     IDS_SANS_SERIF_FONT_FAMILY_ARABIC },
   { prefs::kWebKitStandardFontFamilyCyrillic,