[gtk] fix theming of content settings bubble

chrome/browser/ui/gtk/gtk_theme_service.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/gtk/gtk_theme_service.h"
 
 #include <gtk/gtk.h>
 
 #include <set>
 #include <string>
@@ skipping 392 matching lines @@
       use_gtk_);
   link_buttons_.push_back(link_button);
 
   signals_->Connect(link_button, "destroy",
                     G_CALLBACK(OnDestroyChromeLinkButtonThunk), this);
 
   return link_button;
 }
 
 GtkWidget* GtkThemeService::BuildLabel(const std::string& text,
-                                       GdkColor color) {
+                                       const GdkColor& color) {
   GtkWidget* label = gtk_label_new(text.empty() ? NULL : text.c_str());
   if (!use_gtk_)
-    gtk_widget_modify_fg(label, GTK_STATE_NORMAL, &color);
+    gtk_util::SetLabelColor(label, &color);
   labels_.insert(std::make_pair(label, color));
 
   signals_->Connect(label, "destroy", G_CALLBACK(OnDestroyLabelThunk), this);
 
   return label;
 }
 
 GtkWidget* GtkThemeService::CreateToolbarSeparator() {
   GtkWidget* separator = gtk_vseparator_new();
   GtkWidget* alignment = gtk_alignment_new(0, 0, 1, 1);
@@ skipping 726 matching lines @@
   cairo_new_path(cr);
   cairo_set_line_width(cr, 1.0);
   cairo_move_to(cr, start_x, allocation.y);
   cairo_line_to(cr, start_x, allocation.y + allocation.height);
   cairo_stroke(cr);
   cairo_destroy(cr);
   cairo_pattern_destroy(pattern);
 
   return TRUE;
 }