Fix regression where font size too small for IME short name

ash/common/system/chromeos/ime_menu/ime_list_view.cc

Index: ash/common/system/chromeos/ime_menu/ime_list_view.cc
diff --git a/ash/common/system/chromeos/ime_menu/ime_list_view.cc b/ash/common/system/chromeos/ime_menu/ime_list_view.cc
index e858d695a5210097218fdd30d02054f7c7cdb70c..e3303da79416f6fba95b100b298ba4a97ec2f7f5 100644
--- a/ash/common/system/chromeos/ime_menu/ime_list_view.cc
+++ b/ash/common/system/chromeos/ime_menu/ime_list_view.cc
@@ -105,7 +105,8 @@ class ImeListItemView : public ActionableView {
     // |kMenuIconSize| is not enough. The label will trigger eliding as "I..."
     // or "...". So we shrink the font size until it fits within the bounds.
     int size_delta = -1;
-    while (id_label->GetPreferredSize().width() > kMenuIconSize &&
+    while ((id_label->GetPreferredSize().width() -
+            id_label->GetInsets().width()) > kMenuIconSize &&
            size_delta >= kMinFontSizeDelta) {
       id_label->SetFontList(base_font_list.DeriveWithSizeDelta(size_delta));
       --size_delta;