browser: Split out the prefs registration of invert bubble from views file.

chrome/browser/accessibility/invert_bubble_views.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 "base/utf_string_conversions.h"
 #include "chrome/browser/accessibility/invert_bubble_views.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ skipping 137 matching lines @@
     WindowOpenDisposition disposition =
         event_utils::DispositionFromEventFlags(event_flags);
     content::OpenURLParams params(
         GURL(url), content::Referrer(),
         disposition == CURRENT_TAB ? NEW_FOREGROUND_TAB : disposition,
         content::PAGE_TRANSITION_LINK, false);
     browser->OpenURL(params);
   }
 }
 
-// static
-void InvertBubble::RegisterUserPrefs(PrefService* prefs) {
-  prefs->RegisterBooleanPref(prefs::kInvertNotificationShown,
-                             false,
-                             PrefService::UNSYNCABLE_PREF);
-}
-
 void InvertBubble::MaybeShowInvertBubble(Profile* profile,
                                          views::View* anchor_view) {
   PrefService* pref_service = profile->GetPrefs();
   if (gfx::IsInvertedColorScheme() &&
       !pref_service->GetBoolean(prefs::kInvertNotificationShown)) {
     pref_service->SetBoolean(prefs::kInvertNotificationShown, true);
     InvertBubbleView* delegate = new InvertBubbleView(profile, anchor_view);
     views::BubbleDelegateView::CreateBubble(delegate);
     delegate->StartFade(true);
   }
 }