Reapplies r91761.

chrome/browser/chromeos/login/screen_locker.cc

 // Copyright (c) 2011 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/chromeos/login/screen_locker.h"
 
 #include <X11/extensions/XTest.h>
 #include <X11/keysym.h>
 #include <gdk/gdkkeysyms.h>
 #include <gdk/gdkx.h>
@@ skipping 212 matching lines @@
   }
 
   virtual void ClearNativeFocus() OVERRIDE {
     DCHECK(toplevel_focus_widget_);
     gtk_widget_grab_focus(toplevel_focus_widget_);
   }
 
   // Sets the widget to move the focus to when clearning the native
   // widget's focus.
   void set_toplevel_focus_widget(GtkWidget* widget) {
-    GTK_WIDGET_SET_FLAGS(widget, GTK_CAN_FOCUS);
+    gtk_widget_set_can_focus(widget, TRUE);
     toplevel_focus_widget_ = widget;
   }
 
  private:
   // The widget we set focus to when clearning the focus on native
   // widget.  In screen locker, gdk input is grabbed in GrabWidget,
   // and resetting the focus by using gtk_window_set_focus seems to
   // confuse gtk and doesn't let focus move to native widget under
   // GrabWidget.
   GtkWidget* toplevel_focus_widget_;
@@ skipping 979 matching lines @@
 
 bool ScreenLocker::AcceleratorPressed(const views::Accelerator& accelerator) {
   if (!background_view_->IsScreenSaverVisible()) {
     StartScreenSaver();
     return true;
   }
   return false;
 }
 
 }  // namespace chromeos