Bring up a content settings icon for ungestured registerProtocolHandler call.

chrome/browser/content_settings/content_settings_policy_provider.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/content_settings_policy_provider.h"
 
 #include <string>
 #include <vector>
 
 #include "base/json/json_reader.h"
@@ skipping 20 matching lines @@
   prefs::kManagedDefaultPluginsSetting,
   prefs::kManagedDefaultPopupsSetting,
   prefs::kManagedDefaultGeolocationSetting,
   prefs::kManagedDefaultNotificationsSetting,
   NULL,  // No policy for default value of content type intents
   NULL,  // No policy for default value of content type auto-select-certificate
   NULL,  // No policy for default value of fullscreen requests
   NULL,  // No policy for default value of mouse lock requests
   NULL,  // No policy for default value of mixed script blocking
   prefs::kManagedDefaultMediaStreamSetting,
+  NULL,  // No policy for default value of protocol handlers
 };
 COMPILE_ASSERT(arraysize(kPrefToManageType) == CONTENT_SETTINGS_NUM_TYPES,
                managed_content_settings_pref_names_array_size_incorrect);
 
 struct PrefsForManagedContentSettingsMapEntry {
   const char* pref_name;
   ContentSettingsType content_type;
   ContentSetting setting;
 };
 
@@ skipping 414 matching lines @@
     NOTREACHED() << "Unexpected notification";
     return;
   }
   NotifyObservers(ContentSettingsPattern(),
                   ContentSettingsPattern(),
                   CONTENT_SETTINGS_TYPE_DEFAULT,
                   std::string());
 }
 
 }  // namespace content_settings