Improve the look of the Linux omnibox.

base/gfx/gtk_util.cc

 // Copyright (c) 2009 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 "base/gfx/gtk_util.h"
 
 #include <gdk/gdk.h>
+#include <gtk/gtk.h>
 
 #include "base/gfx/rect.h"
 #include "skia/include/SkBitmap.h"
 
 namespace gfx {
 
 void SubtractRectanglesFromRegion(GdkRegion* region,
                                   const std::vector<gfx::Rect>& cutouts) {
   for (size_t i = 0; i < cutouts.size(); ++i) {
     GdkRectangle rect = cutouts[i].ToGdkRectangle();
@@ skipping 35 matching lines @@
       true,  // There is an alpha channel.
       8,
       width, height, stride, &FreePixels, data);
 
   // Assume ownership of pixbuf.
   g_object_ref_sink(pixbuf);
   bitmap->unlockPixels();
   return pixbuf;
 }
 
+GtkWidget* CreateGtkBorderBin(GtkWidget* child, const GdkColor* color,
+                              int top, int bottom, int left, int right) {
+  // Use a GtkEventBox to get the background painted.  However, we can't just
+  // use a container border, since it won't paint there.  Use an alignment
+  // inside to get the sizes exactly of how we want the border painted.
+  GtkWidget* ebox = gtk_event_box_new();
+  gtk_widget_modify_bg(ebox, GTK_STATE_NORMAL, color);
+  GtkWidget* alignment = gtk_alignment_new(0, 0, 1, 1);
+  gtk_alignment_set_padding(GTK_ALIGNMENT(alignment), top, bottom, left, right);
+  gtk_container_add(GTK_CONTAINER(alignment), child);
+  gtk_container_add(GTK_CONTAINER(ebox), alignment);
+  return ebox;
+}
+
 }  // namespace gfx