Draw infobar arrow border with width of 1px on any scale factor.

chrome/browser/ui/views/infobars/infobar_view.cc

Index: chrome/browser/ui/views/infobars/infobar_view.cc
diff --git a/chrome/browser/ui/views/infobars/infobar_view.cc b/chrome/browser/ui/views/infobars/infobar_view.cc
index 7bf133fd114b2b34b755ce42d252095765a88cb3..d0b78c305e05fee44ef0e14e78280c42632edc7a 100644
--- a/chrome/browser/ui/views/infobars/infobar_view.cc
+++ b/chrome/browser/ui/views/infobars/infobar_view.cc
@@ -102,6 +102,12 @@ InfoBarView::InfoBarView(scoped_ptr<infobars::InfoBarDelegate> delegate)
   }
 }
 
+const infobars::InfoBarContainer::Delegate* InfoBarView::container_delegate()
+    const {
+  const infobars::InfoBarContainer* infobar_container = container();
+  return infobar_container ? infobar_container->delegate() : NULL;
+}
+
 InfoBarView::~InfoBarView() {
   // We should have closed any open menus in PlatformSpecificHide(), then
   // subclasses' RunMenu() functions should have prevented opening any new ones
@@ -180,12 +186,11 @@ void InfoBarView::Layout() {
   // Calculate the fill and stroke paths.  We do this here, rather than in
   // PlatformSpecificRecalculateHeight(), because this is also reached when our
   // width is changed, which affects both paths.
+  // TODO(estade): these paths aren't used for MD; remove when MD is default.
   stroke_path_.rewind();
   fill_path_.rewind();
   const infobars::InfoBarContainer::Delegate* delegate = container_delegate();
   if (delegate) {
-    static_cast<InfoBarBackground*>(background())->set_separator_color(
-        delegate->GetInfoBarSeparatorColor());
     int arrow_x;
     SkScalar arrow_fill_height = SkIntToScalar(std::max(
         arrow_height() - InfoBarContainerDelegate::kSeparatorLineHeight, 0));
@@ -332,12 +337,6 @@ int InfoBarView::OffsetY(views::View* view) const {
          (bar_target_height() - bar_height());
 }
 
-const infobars::InfoBarContainer::Delegate* InfoBarView::container_delegate()
-    const {
-  const infobars::InfoBarContainer* infobar_container = container();
-  return infobar_container ? infobar_container->delegate() : NULL;
-}
-
 void InfoBarView::RunMenuAt(ui::MenuModel* menu_model,
                             views::MenuButton* button,
                             views::MenuAnchorPosition anchor) {