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

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

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/views/download/download_shelf_view.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/logging.h"
@@ skipping 154 matching lines @@
         this, l10n_util::GetStringUTF16(IDS_SHOW_ALL_DOWNLOADS_MD));
     show_all_view->SetFocusable(true);
     show_all_view->SetStyle(views::Button::STYLE_BUTTON);
     show_all_view_ = show_all_view;
 
     // TODO(estade): share this button init code with the find in page bar;
     // also fix theming.
     close_button_->SetBorder(views::Border::CreateEmptyBorder(4, 4, 4, 4));
     close_button_->SetImageAlignment(views::ImageButton::ALIGN_CENTER,
                                      views::ImageButton::ALIGN_MIDDLE);
-    gfx::ImageSkia image = gfx::CreateVectorIcon(gfx::VectorIconId::BAR_CLOSE,
-                                                 16, gfx::kChromeIconGrey);
+    gfx::ImageSkia image = gfx::CreatePrimaryVectorIcon(
+        gfx::VectorIconId::BAR_CLOSE, gfx::kChromeIconGrey);
     close_button_->SetImage(views::CustomButton::STATE_NORMAL, &image);
   }
   AddChildView(show_all_view_);
   AddChildView(close_button_);
 
   new_item_animation_.SetSlideDuration(kNewItemAnimationDurationMs);
   shelf_animation_.SetSlideDuration(kShelfAnimationDurationMs);
 }
 
 DownloadShelfView::~DownloadShelfView() {
@@ skipping 300 matching lines @@
       return false;
   }
   return true;
 }
 
 content::DownloadItem* DownloadShelfView::GetDownloadItemForView(size_t i) {
   if (ui::MaterialDesignController::IsModeMaterial())
     return static_cast<DownloadItemViewMd*>(download_views_[i])->download();
   return static_cast<DownloadItemView*>(download_views_[i])->download();
 }