Remove duplicate definition of Protocol Handler support URL

chrome/browser/ui/webui/options/handler_options_handler.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/webui/options/handler_options_handler.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/common/url_constants.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/google/core/browser/google_util.h"
 #include "content/public/browser/web_ui.h"
 
 namespace options {
 
-namespace {
-
-const char kHandlersLearnMoreUrl[] =
-    "https://support.google.com/chrome/answer/1382847";
-
-}  // namespace
-
 HandlerOptionsHandler::HandlerOptionsHandler() {
 }
 
 HandlerOptionsHandler::~HandlerOptionsHandler() {
 }
 
 void HandlerOptionsHandler::GetLocalizedValues(
     base::DictionaryValue* localized_strings) {
   DCHECK(localized_strings);
 
   static OptionsStringResource resources[] = {
       { "handlers_tab_label", IDS_HANDLERS_TAB_LABEL },
       { "handlers_allow", IDS_HANDLERS_ALLOW_RADIO },
       { "handlers_block", IDS_HANDLERS_DONOTALLOW_RADIO },
       { "handlers_type_column_header", IDS_HANDLERS_TYPE_COLUMN_HEADER },
       { "handlers_site_column_header", IDS_HANDLERS_SITE_COLUMN_HEADER },
       { "handlers_remove_link", IDS_HANDLERS_REMOVE_HANDLER_LINK },
       { "handlers_none_handler", IDS_HANDLERS_NONE_HANDLER },
       { "handlers_active_heading", IDS_HANDLERS_ACTIVE_HEADING },
       { "handlers_ignored_heading", IDS_HANDLERS_IGNORED_HEADING },
   };
   RegisterTitle(localized_strings, "handlersPage",
                 IDS_HANDLER_OPTIONS_WINDOW_TITLE);
   RegisterStrings(localized_strings, resources, arraysize(resources));
 
   localized_strings->SetString("handlers_learn_more_url",
-                               kHandlersLearnMoreUrl);
+                               chrome::kLearnMoreRegisterProtocolHandlerURL);
 }
 
 void HandlerOptionsHandler::InitializeHandler() {
   notification_registrar_.Add(
       this, chrome::NOTIFICATION_PROTOCOL_HANDLER_REGISTRY_CHANGED,
       content::Source<Profile>(Profile::FromWebUI(web_ui())));
 }
 
 void HandlerOptionsHandler::InitializePage() {
   UpdateHandlerList();
@@ skipping 149 matching lines @@
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   if (type == chrome::NOTIFICATION_PROTOCOL_HANDLER_REGISTRY_CHANGED)
     UpdateHandlerList();
   else
     NOTREACHED();
 }
 
 }  // namespace options