Refactor ViewsDelegate and MD-ify the icon-to-text spacing for checkbox and radiobutton

chrome/browser/ui/views/harmony/harmony_layout_delegate.cc

Index: chrome/browser/ui/views/harmony/harmony_layout_delegate.cc
diff --git a/chrome/browser/ui/views/harmony/harmony_layout_delegate.cc b/chrome/browser/ui/views/harmony/harmony_layout_delegate.cc
index fa98a1c3ce9da7b6f86fe601797c65773f698ebf..6985e7b36e55ebfc9a0ab60aeafd78a20b5607dc 100644
--- a/chrome/browser/ui/views/harmony/harmony_layout_delegate.cc
+++ b/chrome/browser/ui/views/harmony/harmony_layout_delegate.cc
@@ -32,6 +32,8 @@ int HarmonyLayoutDelegate::GetMetric(Metric metric) const {
       // TODO(pkasting): The "- 4" here is a hack that matches the extra padding
       // in vector_icon_button.cc and should be removed when that padding is.
       return (kHarmonyLayoutUnit / 2) - 4;
+    case Metric::ICON_TEXT_SPACING:
+      return kHarmonyLayoutUnit;
     case Metric::PANEL_CONTENT_MARGIN:
       return kHarmonyLayoutUnit;
     case Metric::RELATED_BUTTON_HORIZONTAL_SPACING: