Remove chrome://welcome page.

chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc

Index: chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
diff --git a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
index c8dbb78fadef9ade134fbbf089a523ccca783ca3..6a8f3a48455af568b7d9b9c0adc9fa5da7f8a328 100644
--- a/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
+++ b/chrome/browser/ui/webui/chrome_web_ui_controller_factory.cc
@@ -88,9 +88,7 @@
 #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"
@@ -346,10 +344,7 @@ WebUIFactoryFunction GetWebUIFactoryFunction(WebUI* web_ui,
   /****************************************************************************
    * 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)->