[omnibox] Indent pedal submatches

A small UI change to indent pedal submatches along with tab switch
suggestions (if enabled as submatches).

Bug: 995935
Change-Id: I657ff010e54d2cbf80ccfc029fdc8c4643b56cc4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1783524Reviewed-by: Justin Donnelly <jdonnelly@chromium.org>
Commit-Queue: Kevin Bailey <krb@chromium.org>
Cr-Commit-Position: refs/heads/master@{#693172}

chrome/browser/ui/views/omnibox/omnibox_result_view.cc

@@ -305,7 +305,7 @@ void OmniboxResultView::Layout() {
   keyword_view_->SetBounds(suggestion_width, 0, width() - suggestion_width,
                            height());
   if (popup_contents_view_->InExplicitExperimentalKeywordMode() ||
-      match_.IsTabSwitchSuggestion()) {
+      match_.IsSubMatch()) {
     suggestion_view_->SetBounds(kKeywordSuggestionIndent, 0,
                                 suggestion_width - kKeywordSuggestionIndent,
                                 height());