ui: Cleanup class/struct forward declarations

chrome/browser/ui/views/download/download_item_view.cc

Index: chrome/browser/ui/views/download/download_item_view.cc
diff --git a/chrome/browser/ui/views/download/download_item_view.cc b/chrome/browser/ui/views/download/download_item_view.cc
index 2af5c69da02f1c59632f4809f5c8d0385429b25a..9fba09021e21aa63cbd3be765ac183fdd034d93b 100644
--- a/chrome/browser/ui/views/download/download_item_view.cc
+++ b/chrome/browser/ui/views/download/download_item_view.cc
@@ -59,6 +59,7 @@
 #include "ui/gfx/vector_icons_public.h"
 #include "ui/views/animation/flood_fill_ink_drop_ripple.h"
 #include "ui/views/animation/ink_drop_highlight.h"
+#include "ui/views/animation/ink_drop_impl.h"
 #include "ui/views/border.h"
 #include "ui/views/controls/button/md_text_button.h"
 #include "ui/views/controls/button/vector_icon_button.h"
@@ -194,8 +195,7 @@ DownloadItemView::DownloadItemView(DownloadItem* download_item,
   set_context_menu_controller(this);
 
   dropdown_button_->SetBorder(
-      views::Border::CreateEmptyBorder(gfx::Insets(kDropdownBorderWidth)));
-  dropdown_button_->set_ink_drop_size(gfx::Size(32, 32));
+      views::CreateEmptyBorder(gfx::Insets(kDropdownBorderWidth)));
   AddChildView(dropdown_button_);
 
   LoadIcon();
@@ -491,6 +491,10 @@ void DownloadItemView::AddInkDropLayer(ui::Layer* ink_drop_layer) {
   layer()->SetMasksToBounds(true);
 }
 
+std::unique_ptr<views::InkDrop> DownloadItemView::CreateInkDrop() {
+  return CreateDefaultFloodFillInkDropImpl();
+}
+
 std::unique_ptr<views::InkDropRipple> DownloadItemView::CreateInkDropRipple()
     const {
   return base::MakeUnique<views::FloodFillInkDropRipple>(