GTK: Use GTK+ theme selection colors and plumb them into webkit.

chrome/browser/renderer_preferences_util.cc

Index: chrome/browser/renderer_preferences_util.cc
diff --git a/chrome/browser/renderer_preferences_util.cc b/chrome/browser/renderer_preferences_util.cc
index de9f711101e3ed56a2c6fc7c4d3d19d3e2e761c1..28b4c05718f56ad9fcc82427b4490d9670dd6f55 100644
--- a/chrome/browser/renderer_preferences_util.cc
+++ b/chrome/browser/renderer_preferences_util.cc
@@ -24,6 +24,12 @@ void UpdateFromSystemSettings(RendererPreferences* prefs, Profile* profile) {
   prefs->thumb_active_color = provider->get_thumb_active_color();
   prefs->thumb_inactive_color = provider->get_thumb_inactive_color();
   prefs->track_color = provider->get_track_color();
+  prefs->active_selection_bg_color = provider->get_active_selection_bg_color();
+  prefs->active_selection_fg_color = provider->get_active_selection_fg_color();
+  prefs->inactive_selection_bg_color =
+      provider->get_inactive_selection_bg_color();
+  prefs->inactive_selection_fg_color =
+      provider->get_inactive_selection_fg_color();
 #endif  // !defined(TOOLKIT_VIEWS)
 #endif  // defined(OS_LINUX)
 }