For some vector icons, get the size from the vector definition.

chrome/browser/ui/views/location_bar/selected_keyword_view.cc

Index: chrome/browser/ui/views/location_bar/selected_keyword_view.cc
diff --git a/chrome/browser/ui/views/location_bar/selected_keyword_view.cc b/chrome/browser/ui/views/location_bar/selected_keyword_view.cc
index d8b0081b5cb70aa52ccc2be3ec5c5f499462fe48..fc03c1f925630c79519f2cac109c7cce1f15e568 100644
--- a/chrome/browser/ui/views/location_bar/selected_keyword_view.cc
+++ b/chrome/browser/ui/views/location_bar/selected_keyword_view.cc
@@ -45,7 +45,7 @@ SelectedKeywordView::~SelectedKeywordView() {
 
 void SelectedKeywordView::ResetImage() {
   if (ui::MaterialDesignController::IsModeMaterial()) {
-    SetImage(gfx::CreateVectorIcon(gfx::VectorIconId::KEYWORD_SEARCH, 16,
+    SetImage(gfx::CreateVectorIcon(gfx::VectorIconId::KEYWORD_SEARCH,
                                    GetTextColor()));
   } else {
     SetImage(*GetThemeProvider()->GetImageSkiaNamed(IDR_OMNIBOX_SEARCH));