Gtk3: Add themable location bar border color

chrome/browser/ui/libgtkui/gtk_ui.cc

Index: chrome/browser/ui/libgtkui/gtk_ui.cc
diff --git a/chrome/browser/ui/libgtkui/gtk_ui.cc b/chrome/browser/ui/libgtkui/gtk_ui.cc
index e651d3f692dd49d623fbf679d28ca91bb5d31533..be90637a11a7a40a34fafc894dc135243dd2b24e 100644
--- a/chrome/browser/ui/libgtkui/gtk_ui.cc
+++ b/chrome/browser/ui/libgtkui/gtk_ui.cc
@@ -841,6 +841,10 @@ void GtkUi::LoadGtkValues() {
   colors_[ThemeProperties::COLOR_BACKGROUND_TAB_TEXT] =
       color_utils::BlendTowardOppositeLuma(toolbar_text_color, 50);
 
+  // Color drawn around the location bar.
+  colors_[ThemeProperties::COLOR_LOCATION_BAR_BORDER] =
+      GetBorderColor("GtkToolbar#toolbar GtkEntry#entry");
+
   inactive_selection_bg_color_ =
       GetBgColor("GtkEntry#entry:backdrop #selection:selected");
   inactive_selection_fg_color_ =