Add missing (and remove superfluous) 'explicit' from constructors.

chrome/browser/ui/gtk/website_settings/website_settings_popup_gtk.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 "chrome/browser/ui/gtk/website_settings/website_settings_popup_gtk.h"
 
 #include "base/i18n/rtl.h"
 #include "base/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/api/infobars/infobar_service.h"
@@ skipping 110 matching lines @@
   gtk_box_pack_start(GTK_BOX(title_hbox), label, FALSE, FALSE, 0);
 
   // Add section content
   gtk_box_pack_start(GTK_BOX(section_box), section_content, FALSE, FALSE, 0);
   return section_box;
 }
 
 // A popup that is shown for internal pages (like chrome://).
 class InternalPageInfoPopupGtk : public BubbleDelegateGtk {
  public:
-  explicit InternalPageInfoPopupGtk(gfx::NativeWindow parent,
-                                          Profile* profile);
+  InternalPageInfoPopupGtk(gfx::NativeWindow parent,
+                           Profile* profile);
   virtual ~InternalPageInfoPopupGtk();
 
  private:
   // BubbleDelegateGtk implementation.
   virtual void BubbleClosing(BubbleGtk* bubble, bool closed_by_escape) OVERRIDE;
 
   // The popup bubble container.
   BubbleGtk* bubble_;
 
   DISALLOW_COPY_AND_ASSIGN(InternalPageInfoPopupGtk);
@@ skipping 590 matching lines @@
 }
 
 void WebsiteSettingsPopupGtk::OnHelpLinkClicked(GtkWidget* widget) {
   browser_->OpenURL(OpenURLParams(GURL(chrome::kPageInfoHelpCenterURL),
                     content::Referrer(),
                     NEW_FOREGROUND_TAB,
                     content::PAGE_TRANSITION_LINK,
                      false));
   bubble_->Close();
 }