Change name of NativeTheme::instance() to make it clear it's web only.

chrome/browser/ui/sync/profile_signin_confirmation_helper.cc

 // Copyright 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/ui/sync/profile_signin_confirmation_helper.h"
 
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/history/history_service_factory.h"
@@ skipping 25 matching lines @@
   bool has_bookmarks = bookmarks && bookmarks->HasBookmarks();
   if (has_bookmarks)
     DVLOG(1) << "SigninConfirmationHelper: profile contains bookmarks";
   return has_bookmarks;
 }
 
 }  // namespace
 
 namespace ui {
 
-SkColor GetSigninConfirmationPromptBarColor(SkAlpha alpha) {
+SkColor GetSigninConfirmationPromptBarColor(ui::NativeTheme* theme,
+                                            SkAlpha alpha) {
   static const SkColor kBackgroundColor =
-      ui::NativeTheme::instance()->GetSystemColor(
-          ui::NativeTheme::kColorId_DialogBackground);
+      theme->GetSystemColor(ui::NativeTheme::kColorId_DialogBackground);
   return color_utils::BlendTowardOppositeLuminance(kBackgroundColor, alpha);
 }
 
 bool HasBeenShutdown(Profile* profile) {
 #if defined(OS_IOS)
   // This check is not useful on iOS: the browser can be shut down without
   // explicit user action (for example, in response to memory pressure), and
   // this should be invisible to the user. The desktop assumption that the
   // profile going through a restart indicates something about user intention
   // does not hold. We rely on the other profile dirtiness checks.
@@ skipping 43 matching lines @@
   history::HistoryService* service =
       HistoryServiceFactory::GetForProfileWithoutCreating(profile);
   // Fire asynchronous queries for profile data.
   sync_driver::SigninConfirmationHelper* helper =
       new sync_driver::SigninConfirmationHelper(service, return_result);
   helper->CheckHasHistory(kHistoryEntriesBeforeNewProfilePrompt);
   helper->CheckHasTypedURLs();
 }
 
 }  // namespace ui