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