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

chrome/browser/ui/views/download/download_item_view_md.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_item_view_md.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 808 matching lines @@
 }
 
 void DownloadItemViewMd::SetDropdownState(State new_state) {
   // Avoid extra SchedulePaint()s if the state is going to be the same and
   // |dropdown_button_| has already been initialized.
   if (dropdown_state_ == new_state &&
       !dropdown_button_->GetImage(views::CustomButton::STATE_NORMAL).isNull())
     return;
 
   // TODO(estade): theme this color instead of using a constant.
-  gfx::ImageSkia image =
-      gfx::CreateVectorIcon(new_state == PUSHED ? gfx::VectorIconId::FIND_NEXT
-                                                : gfx::VectorIconId::FIND_PREV,
-                            16, gfx::kChromeIconGrey);
+  gfx::ImageSkia image = gfx::CreatePrimaryVectorIcon(
+      new_state == PUSHED ? gfx::VectorIconId::FIND_NEXT
+                          : gfx::VectorIconId::FIND_PREV,
+      gfx::kChromeIconGrey);
   dropdown_button_->SetImage(views::CustomButton::STATE_NORMAL, &image);
   dropdown_state_ = new_state;
   SchedulePaint();
 }
 
 void DownloadItemViewMd::ClearWarningDialog() {
   DCHECK(download()->GetDangerType() ==
          content::DOWNLOAD_DANGER_TYPE_USER_VALIDATED);
   DCHECK(mode_ == DANGEROUS_MODE || mode_ == MALICIOUS_MODE);
 
@@ skipping 227 matching lines @@
     State to,
     gfx::SlideAnimation* animation) {
   if (from == NORMAL && to == HOT) {
     animation->Show();
   } else if (from == HOT && to == NORMAL) {
     animation->Hide();
   } else if (from != to) {
     animation->Reset((to == HOT) ? 1.0 : 0.0);
   }
 }