Initial gtk3 support

chrome/browser/ui/libgtk2ui/gtk2_util.cc

Index: chrome/browser/ui/libgtk2ui/gtk2_util.cc
diff --git a/chrome/browser/ui/libgtk2ui/gtk2_util.cc b/chrome/browser/ui/libgtk2ui/gtk2_util.cc
index 8bac9cb3dc39151dad6ab40234337680cb4f2ad0..bd8d45056e5612d631e0bf24afbc1204e4b38698 100644
--- a/chrome/browser/ui/libgtk2ui/gtk2_util.cc
+++ b/chrome/browser/ui/libgtk2ui/gtk2_util.cc
@@ -135,15 +135,15 @@ void ClearAuraTransientParent(GtkWidget* dialog) {
   g_object_set_data(G_OBJECT(dialog), kAuraTransientParent, NULL);
 }
 
-GtkStateType GetGtkState(ui::NativeTheme::State state) {
+GtkStateFlags GetGtkState(ui::NativeTheme::State state) {
   switch (state) {
-    case ui::NativeTheme::kDisabled:  return GTK_STATE_INSENSITIVE;
-    case ui::NativeTheme::kHovered:   return GTK_STATE_PRELIGHT;
-    case ui::NativeTheme::kNormal:    return GTK_STATE_NORMAL;
-    case ui::NativeTheme::kPressed:   return GTK_STATE_ACTIVE;
+    case ui::NativeTheme::kDisabled:  return GTK_STATE_FLAG_INSENSITIVE;
+    case ui::NativeTheme::kHovered:   return GTK_STATE_FLAG_PRELIGHT;
+    case ui::NativeTheme::kNormal:    return GTK_STATE_FLAG_NORMAL;
+    case ui::NativeTheme::kPressed:   return GTK_STATE_FLAG_ACTIVE;
     case ui::NativeTheme::kNumStates: NOTREACHED();
   }
-  return GTK_STATE_NORMAL;
+  return GTK_STATE_FLAG_NORMAL;
 }
 
 }  // namespace libgtk2ui