Remove WebUI NTP on Android.

chrome/browser/extensions/extension_service.cc

 // Copyright (c) 2013 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/extensions/extension_service.h"
 
 #include <algorithm>
 #include <iterator>
 #include <set>
 
@@ skipping 1003 matching lines @@
     content::URLDataSource::Add(profile_, favicon_source);
   }
 
 #if !defined(OS_ANDROID)
   // Same for chrome://theme/ resources.
   if (extensions::PermissionsData::HasHostPermission(
           extension, GURL(chrome::kChromeUIThemeURL))) {
     ThemeSource* theme_source = new ThemeSource(profile_);
     content::URLDataSource::Add(profile_, theme_source);
   }
-#endif
 
   // Same for chrome://thumb/ resources.
   if (extensions::PermissionsData::HasHostPermission(
           extension, GURL(chrome::kChromeUIThumbnailURL))) {
     ThumbnailSource* thumbnail_source = new ThumbnailSource(profile_, false);
     content::URLDataSource::Add(profile_, thumbnail_source);
   }
+#endif
 }
 
 void ExtensionService::NotifyExtensionUnloaded(
     const Extension* extension,
     UnloadedExtensionInfo::Reason reason) {
   UnloadedExtensionInfo details(extension, reason);
 
   registry_->TriggerOnUnloaded(extension, reason);
 
   content::NotificationService::current()->Notify(
@@ skipping 1384 matching lines @@
 void ExtensionService::UnloadAllExtensionsInternal() {
   profile_->GetExtensionSpecialStoragePolicy()->RevokeRightsForAllExtensions();
 
   registry_->ClearAll();
   system_->runtime_data()->ClearAll();
 
   // TODO(erikkay) should there be a notification for this?  We can't use
   // EXTENSION_UNLOADED since that implies that the extension has been disabled
   // or uninstalled.
 }