Moving FaviconService to a ProfileKeyedService.

chrome/browser/favicon/favicon_service_factory.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 "chrome/browser/favicon/favicon_service_factory.h"
+
+#include "base/memory/singleton.h"
+#include "chrome/browser/favicon/favicon_service.h"
+#include "chrome/browser/history/history.h"
+#include "chrome/browser/history/history_service_factory.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile_dependency_manager.h"
+#include "chrome/common/pref_names.h"
+
+// static
+FaviconService* FaviconServiceFactory::GetForProfile(
+    Profile* profile, Profile::ServiceAccessType sat) {
+  if (!profile->IsOffTheRecord()) {
+    return static_cast<FaviconService*>(
+        GetInstance()->GetServiceForProfile(profile, true));
+  } else if (sat == Profile::EXPLICIT_ACCESS) {
+    // Profile must be OffTheRecord in this case.
+    return static_cast<FaviconService*>(
+        GetInstance()->GetServiceForProfile(
+            profile->GetOriginalProfile(), true));
+  }
+
+  // Profile is OffTheRecord without access.
+  NOTREACHED() << "This profile is OffTheRecord";
+  return NULL;
+}
+
+// static
+FaviconServiceFactory* FaviconServiceFactory::GetInstance() {
+  return Singleton<FaviconServiceFactory>::get();
+}
+
+FaviconServiceFactory::FaviconServiceFactory()
+    : ProfileKeyedServiceFactory("FaviconService",
+                                 ProfileDependencyManager::GetInstance()) {
+  DependsOn(HistoryServiceFactory::GetInstance());
+}
+
+FaviconServiceFactory::~FaviconServiceFactory() {}
+
+ProfileKeyedService* FaviconServiceFactory::BuildServiceInstanceFor(
+    Profile* profile) const {
+  HistoryService* history_service = HistoryServiceFactory::GetForProfile(
+      profile, Profile::EXPLICIT_ACCESS);
+  return new FaviconService(history_service);
+}
+
+bool FaviconServiceFactory::ServiceIsNULLWhileTesting() {
+  return true;
+}