Fix index font for emoji suggestions

Current View: http://screen/6xC9K1fruqH
Specs: http://screen/qgE7xnf2LhN

Bug: 1099454
Change-Id: I7b1084aaaae671448c7e0d20b80616cdd0e60602
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2281789Reviewed-by: Darren Shen <shend@chromium.org>
Commit-Queue: My Nguyen <myy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#785255}

chrome/browser/chromeos/input_method/ui/suggestion_view.cc

@@ -21,6 +21,10 @@ namespace {
 // The label text is not set in this function.
 std::unique_ptr<views::Label> CreateIndexLabel() {
   auto index_label = std::make_unique<views::Label>();
+  index_label->SetFontList(gfx::FontList({kFontStyle}, gfx::Font::NORMAL,
+                                         kIndexFontSize,
+                                         gfx::Font::Weight::MEDIUM));
+  index_label->SetEnabledColor(kSuggestionColor);
   index_label->SetHorizontalAlignment(gfx::ALIGN_CENTER);
   index_label->SetBorder(
       views::CreateEmptyBorder(gfx::Insets(kPadding / 2, 0)));

chrome/browser/chromeos/input_method/ui/suggestion_view.h

@@ -22,6 +22,7 @@ struct SuggestionDetails;
 constexpr char kFontStyle[] = "Roboto";
 constexpr int kSuggestionFontSize = 14;
 constexpr int kAnnotationFontSize = 10;
+constexpr int kIndexFontSize = 10;
 
 // Style-related constants
 constexpr int kAnnotationBorderThickness = 1;