Implement the "Configure modifier keys" drop-down

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 2e110f06ce4732052d50ce3ca959b406272478f3..d391397a8914e1feb173595cba825414729cbada 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -8436,6 +8436,18 @@ Keep your key file in a safe place. You will need it to create new versions of y
                desc="The slider label for a Mozc input method preference">
         Maximum number of suggestions
       </message>
+      <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_XKB_MODIFIER_NO_REMAP"
+               desc="The label for 'Configure modifier keys' drop-down">
+        Do not swap modifier keys
+      </message>
+      <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_XKB_MODIFIER_REMAP_CTRL_ALT"
+               desc="The label for 'Configure modifier keys' drop-down">
+        Swap Left Control and Left Alt keys
+      </message>
+      <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_XKB_MODIFIER_REMAP_SEARCH_CTRL"
+               desc="The label for 'Configure modifier keys' drop-down">
+        Swap Search and Left Control keys
+      </message>
       <message name="IDS_OPTIONS_SETTINGS_LANGUAGES_CONFIGURE"
                desc="The label for the configure button for input methods">
         Configure...