Move remaining files in content\browser\renderer_host to content namespace.

content/browser/renderer_host/gtk_key_bindings_handler.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 "content/browser/renderer_host/gtk_key_bindings_handler.h"
 
 #include <gdk/gdkkeysyms.h>
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/string_util.h"
 #include "content/public/browser/native_web_keyboard_event.h"
 
-using content::EditCommand;
-using content::EditCommands;
-using content::NativeWebKeyboardEvent;
+namespace content {
 
 GtkKeyBindingsHandler::GtkKeyBindingsHandler(GtkWidget* parent_widget)
     : handler_(CreateNewHandler()) {
   DCHECK(GTK_IS_FIXED(parent_widget));
   // We need add the |handler_| object into gtk widget hierarchy, so that
   // gtk_bindings_activate_event() can find correct display and keymaps from
   // the |handler_| object.
   gtk_fixed_put(GTK_FIXED(parent_widget), handler_.get(), -1, -1);
 }
 
@@ skipping 255 matching lines @@
 gboolean GtkKeyBindingsHandler::ShowHelp(GtkWidget* widget,
                                          GtkWidgetHelpType arg1) {
   // Just for disabling the default handler.
   return FALSE;
 }
 
 void GtkKeyBindingsHandler::MoveFocus(GtkWidget* widget,
                                       GtkDirectionType arg1) {
   // Just for disabling the default handler.
 }
+
+}  // namespace content