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

chrome/browser/ui/views/extensions/extension_install_dialog_view.cc

Index: chrome/browser/ui/views/extensions/extension_install_dialog_view.cc
diff --git a/chrome/browser/ui/views/extensions/extension_install_dialog_view.cc b/chrome/browser/ui/views/extensions/extension_install_dialog_view.cc
index eb2f69df955398007840da42d3d3b5e1b1a8e5b2..fee43487d38c677aecf82c49def9334872890c42 100644
--- a/chrome/browser/ui/views/extensions/extension_install_dialog_view.cc
+++ b/chrome/browser/ui/views/extensions/extension_install_dialog_view.cc
@@ -814,9 +814,9 @@ void ExpandableContainerView::ToggleDetailLevel() {
 }
 
 void ExpandableContainerView::UpdateArrowToggle(bool expanded) {
-  gfx::ImageSkia icon = gfx::CreateVectorIcon(
+  gfx::ImageSkia icon = gfx::CreatePrimaryVectorIcon(
       expanded ? gfx::VectorIconId::FIND_PREV : gfx::VectorIconId::FIND_NEXT,
-      16, gfx::kChromeIconGrey);
+      gfx::kChromeIconGrey);
   arrow_toggle_->SetImage(views::Button::STATE_NORMAL, &icon);
 }