Remove chrome://welcome page.

chrome/browser/ui/webui/chrome_web_ui_controller_factory.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/chrome_web_ui_controller_factory.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 70 matching lines @@
 #endif
 
 #if defined(ENABLE_WEBRTC)
 #include "chrome/browser/ui/webui/media/webrtc_logs_ui.h"
 #endif
 
 #if defined(ENABLE_FULL_PRINTING)
 #include "chrome/browser/ui/webui/print_preview/print_preview_ui.h"
 #endif
 
-#if defined(OS_ANDROID)
-#include "chrome/browser/ui/webui/welcome_ui_android.h"
-#else
+#if !defined(OS_ANDROID)
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
 #include "chrome/browser/ui/webui/quota_internals/quota_internals_ui.h"
 #include "chrome/browser/ui/webui/suggestions_internals/suggestions_internals_ui.h"
 #include "chrome/browser/ui/webui/sync_file_system_internals/sync_file_system_internals_ui.h"
 #include "chrome/browser/ui/webui/system_info_ui.h"
 #include "chrome/browser/ui/webui/uber/uber_ui.h"
 #endif
 
 #if defined(OS_ANDROID) || defined(OS_IOS)
 #include "chrome/browser/ui/webui/net_export_ui.h"
@@ skipping 235 matching lines @@
     return &NewWebUI<WebRtcLogsUI>;
 #endif
 #if defined(ENABLE_APP_LIST)
   if (url.host() == chrome::kChromeUIAppListStartPageHost)
     return &NewWebUI<app_list::StartPageUI>;
 #endif
 
   /****************************************************************************
    * OS Specific #defines
    ***************************************************************************/
-#if defined(OS_ANDROID)
-  if (url.host() == chrome::kChromeUIWelcomeHost)
-    return &NewWebUI<WelcomeUI>;
-#else
+#if !defined(OS_ANDROID)
   // AppLauncherPage is not needed on Android.
   if (url.host() == chrome::kChromeUIAppLauncherPageHost &&
       profile && extensions::ExtensionSystem::Get(profile)->
           extension_service()) {
     return &NewWebUI<AppLauncherPageUI>;
   }
   // Bookmarks are part of NTP on Android.
   if (url.host() == chrome::kChromeUIBookmarksHost)
     return &NewWebUI<BookmarksUI>;
   if (url.SchemeIs(content::kChromeDevToolsScheme))
@@ skipping 362 matching lines @@
 #endif
 
   // Android doesn't use the plugins pages.
   if (page_url.host() == chrome::kChromeUIPluginsHost)
     return PluginsUI::GetFaviconResourceBytes(scale_factor);
 
 #endif
 
   return NULL;
 }