Remove explicit keyword from multi-argument constructors

chrome/browser/ui/gtk/browser_titlebar.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/ui/gtk/browser_titlebar.h"
 
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtk.h>
 
 #include <string>
@@ skipping 132 matching lines @@
 
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
 // PopupPageMenuModel
 
 // A menu model that builds the contents of the menu shown for popups (when the
 // user clicks on the favicon) and all of its submenus.
 class PopupPageMenuModel : public ui::SimpleMenuModel {
  public:
-  explicit PopupPageMenuModel(ui::SimpleMenuModel::Delegate* delegate,
-                              Browser* browser);
+  PopupPageMenuModel(ui::SimpleMenuModel::Delegate* delegate, Browser* browser);
   virtual ~PopupPageMenuModel() { }
 
  private:
   void Build();
 
   // Models for submenus referenced by this model. SimpleMenuModel only uses
   // weak references so these must be kept for the lifetime of the top-level
   // model.
   scoped_ptr<ZoomMenuModel> zoom_menu_model_;
   scoped_ptr<EncodingMenuModel> encoding_menu_model_;
@@ skipping 878 matching lines @@
     ui::SimpleMenuModel::Delegate* delegate)
     : SimpleMenuModel(delegate) {
   AddItemWithStringId(IDC_NEW_TAB, IDS_TAB_CXMENU_NEWTAB);
   AddItemWithStringId(IDC_RESTORE_TAB, IDS_RESTORE_TAB);
   AddSeparator();
   AddItemWithStringId(IDC_TASK_MANAGER, IDS_TASK_MANAGER);
   AddSeparator();
   AddCheckItemWithStringId(kShowWindowDecorationsCommand,
                            IDS_SHOW_WINDOW_DECORATIONS_MENU);
 }