MD - use new style of text button in infobars.

chrome/browser/ui/views/infobars/confirm_infobar.cc

Index: chrome/browser/ui/views/infobars/confirm_infobar.cc
diff --git a/chrome/browser/ui/views/infobars/confirm_infobar.cc b/chrome/browser/ui/views/infobars/confirm_infobar.cc
index 7deab920a909a4ca9fb773992c4385d3b442ac26..3bfee35930d1fab53ee521823a41991473896d9f 100644
--- a/chrome/browser/ui/views/infobars/confirm_infobar.cc
+++ b/chrome/browser/ui/views/infobars/confirm_infobar.cc
@@ -72,7 +72,7 @@ void ConfirmInfoBar::ViewHierarchyChanged(
     if (delegate->GetButtons() & ConfirmInfoBarDelegate::BUTTON_OK) {
       if (delegate->OKButtonTriggersUACPrompt()) {
         // Use a label button even in MD mode as MD buttons don't support icons.

[Peter Kasting, 2016/03/09 07:18:10]

Has this been fixed?  We do still want the button to show an elevation icon if
need be.

If so this comment should be removed.

[Evan Stade, 2016/03/10 02:41:42]

Right, good call, comment removed and code cleaned up. I couldn't test for real
because this only works on windows but it looks good when I stick a stand-in
image in there.

-        views::LabelButton* ok_button = CreateLabelButton(
+        views::LabelButton* ok_button = CreateTextButton(
             this, delegate->GetButtonLabel(ConfirmInfoBarDelegate::BUTTON_OK));
         elevation_icon_setter_.reset(new ElevationIconSetter(
             ok_button,