Bring up a content settings icon for ungestured registerProtocolHandler call.

chrome/browser/content_settings/tab_specific_content_settings.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/content_settings/tab_specific_content_settings.h"
 
 #include <list>
 
 #include "base/command_line.h"
 #include "base/lazy_instance.h"
@@ skipping 56 matching lines @@
 TabSpecificContentSettings::SiteDataObserver::~SiteDataObserver() {
   tab_specific_content_settings_->RemoveSiteDataObserver(this);
 }
 
 TabSpecificContentSettings::TabSpecificContentSettings(WebContents* tab)
     : content::WebContentsObserver(tab),
       profile_(Profile::FromBrowserContext(tab->GetBrowserContext())),
       allowed_local_shared_objects_(profile_),
       blocked_local_shared_objects_(profile_),
       geolocation_settings_state_(profile_),
+      pending_protocol_handler_(ProtocolHandler::EmptyProtocolHandler()),
+      previous_protocol_handler_(ProtocolHandler::EmptyProtocolHandler()),
       load_plugins_link_enabled_(true) {
   ClearBlockedContentSettingsExceptForCookies();
   ClearCookieSpecificContentSettings();
   g_tab_specific.Get().push_back(this);
 
   registrar_.Add(this, chrome::NOTIFICATION_CONTENT_SETTINGS_CHANGED,
                  content::Source<HostContentSettingsMap>(
                      profile_->GetHostContentSettingsMap()));
 }
 
@@ skipping 446 matching lines @@
 }
 
 void TabSpecificContentSettings::RemoveSiteDataObserver(
     SiteDataObserver* observer) {
   observer_list_.RemoveObserver(observer);
 }
 
 void TabSpecificContentSettings::NotifySiteDataObservers() {
    FOR_EACH_OBSERVER(SiteDataObserver, observer_list_, OnSiteDataAccessed());
 }