[omnibox] Fix size of Remove button in Views omnibox in touch-mode

Currently, in touch-mode, the Remove X looks wrong.

This CL scales the X button in touch-mode, just like the keyword hint
button.

Bug: 1030423, 1205
Change-Id: Iee991d6189ac4bff2166bba481eaa4df25fc07c4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1949488Reviewed-by: Kevin Bailey <krb@chromium.org>
Commit-Queue: Tommy Li <tommycli@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721499}

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

@@ -75,8 +75,9 @@ OmniboxResultView::OmniboxResultView(
       AddChildView(views::CreateVectorImageButton(this));
   views::InstallCircleHighlightPathGenerator(remove_suggestion_button_);
   // TODO(tommycli): We may need to update the color for theme changes.
+  int icon_size = GetLayoutConstant(LOCATION_BAR_ICON_SIZE);
   views::SetImageFromVectorIcon(remove_suggestion_button_,
-                                vector_icons::kCloseRoundedIcon,
+                                vector_icons::kCloseRoundedIcon, icon_size,
                                 GetColor(OmniboxPart::RESULTS_ICON));
   remove_suggestion_focus_ring_ =
       views::FocusRing::Install(remove_suggestion_button_);
@@ -87,9 +88,9 @@ OmniboxResultView::OmniboxResultView(
 
   keyword_view_ = AddChildView(std::make_unique<OmniboxMatchCellView>(this));
   keyword_view_->icon()->EnableCanvasFlippingForRTLUI(true);
-  keyword_view_->icon()->SetImage(gfx::CreateVectorIcon(
-      omnibox::kKeywordSearchIcon, GetLayoutConstant(LOCATION_BAR_ICON_SIZE),
-      GetColor(OmniboxPart::RESULTS_ICON)));
+  keyword_view_->icon()->SetImage(
+      gfx::CreateVectorIcon(omnibox::kKeywordSearchIcon, icon_size,
+                            GetColor(OmniboxPart::RESULTS_ICON)));
   keyword_view_->icon()->SizeToPreferredSize();
 
   // Calling SetMatch() will result in the child OmniboxMatchCellViews