Tiny refactoring: change variable name.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/7583030

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@95777 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/chromeos/preferences.cc

@@ -589,11 +589,10 @@ void Preferences::UpdateVirturalKeyboardPreference(PrefService* prefs) {
   for (DictionaryValue::key_iterator iter = virtual_keyboard_pref->begin_keys();
        iter != virtual_keyboard_pref->end_keys();
        ++iter) {
-    const std::string& input_method_id = *iter;
-    if (!virtual_keyboard_pref->GetString(input_method_id, &url))
+    const std::string& xkb_layout = *iter;
+    if (!virtual_keyboard_pref->GetString(xkb_layout, &url))
       continue;
-    input_method_manager->SetVirtualKeyboardPreference(
-        input_method_id, GURL(url));
+    input_method_manager->SetVirtualKeyboardPreference(xkb_layout, GURL(url));
   }
 }