Revert of Bring up of the enhanced bookmarks cluster service.

chrome/browser/enhanced_bookmarks/enhanced_bookmark_model_factory.cc

-// Copyright 2014 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/enhanced_bookmarks/enhanced_bookmark_model_factory.h"
-
-#include "base/memory/singleton.h"
-#include "chrome/browser/bookmarks/bookmark_model_factory.h"
-#include "chrome/browser/profiles/incognito_helpers.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/chrome_version_info.h"
-#include "components/enhanced_bookmarks/enhanced_bookmark_model.h"
-#include "components/keyed_service/content/browser_context_dependency_manager.h"
-
-namespace {
-const char kVersionPrefix[] = "chrome.";
-}
-
-namespace enhanced_bookmarks {
-
-EnhancedBookmarkModelFactory::EnhancedBookmarkModelFactory()
-    : BrowserContextKeyedServiceFactory(
-          "EnhancedBookmarkModel",
-          BrowserContextDependencyManager::GetInstance()) {
-  DependsOn(BookmarkModelFactory::GetInstance());
-}
-
-// static
-EnhancedBookmarkModelFactory* EnhancedBookmarkModelFactory::GetInstance() {
-  return Singleton<EnhancedBookmarkModelFactory>::get();
-}
-
-// static
-EnhancedBookmarkModel* EnhancedBookmarkModelFactory::GetForBrowserContext(
-    content::BrowserContext* context) {
-  DCHECK(!context->IsOffTheRecord());
-  return static_cast<EnhancedBookmarkModel*>(
-      GetInstance()->GetServiceForBrowserContext(context, true));
-}
-
-KeyedService* EnhancedBookmarkModelFactory::BuildServiceInstanceFor(
-    content::BrowserContext* browser_context) const {
-  DCHECK(!browser_context->IsOffTheRecord());
-  Profile* profile = Profile::FromBrowserContext(browser_context);
-
-  return new EnhancedBookmarkModel(
-      BookmarkModelFactory::GetForProfile(profile),
-      kVersionPrefix + chrome::VersionInfo().CreateVersionString());
-}
-
-content::BrowserContext* EnhancedBookmarkModelFactory::GetBrowserContextToUse(
-    content::BrowserContext* context) const {
-  return chrome::GetBrowserContextRedirectedInIncognito(context);
-}
-
-}  // namespace enhanced_bookmarks