Remove explicit keyword from multi-argument constructors

chrome/browser/ui/gtk/infobars/translate_message_infobar_gtk.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_GTK_INFOBARS_TRANSLATE_MESSAGE_INFOBAR_GTK_H_
 #define CHROME_BROWSER_UI_GTK_INFOBARS_TRANSLATE_MESSAGE_INFOBAR_GTK_H_
 #pragma once
 
 #include "chrome/browser/ui/gtk/infobars/translate_infobar_base_gtk.h"
 
 class TranslateInfoBarDelegate;
 
 class TranslateMessageInfoBar : public TranslateInfoBarBase {
  public:
-  explicit TranslateMessageInfoBar(TabContentsWrapper* owner,
-                                   TranslateInfoBarDelegate* delegate);
+  TranslateMessageInfoBar(TabContentsWrapper* owner,
+                          TranslateInfoBarDelegate* delegate);
   virtual ~TranslateMessageInfoBar();
 
   // Overridden from TranslateInfoBarBase:
   virtual void Init();
 
  private:
   CHROMEGTK_CALLBACK_0(TranslateMessageInfoBar, void, OnButtonPressed);
 
   DISALLOW_COPY_AND_ASSIGN(TranslateMessageInfoBar);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_INFOBARS_TRANSLATE_MESSAGE_INFOBAR_GTK_H_