[Fallback Icons] Refactor FallbackIconService to be a BrowserContext-level singleton

chrome/test/base/testing_profile.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/test/base/testing_profile.h"
 
 #include "base/base_paths.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/path_service.h"
 #include "base/prefs/testing_pref_store.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "chrome/browser/autocomplete/autocomplete_classifier.h"
 #include "chrome/browser/autocomplete/in_memory_url_index.h"
 #include "chrome/browser/autocomplete/in_memory_url_index_factory.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/bookmarks/chrome_bookmark_client.h"
 #include "chrome/browser/bookmarks/chrome_bookmark_client_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
+#include "chrome/browser/favicon/chrome_fallback_icon_client_factory.h"
 #include "chrome/browser/favicon/chrome_favicon_client_factory.h"
+#include "chrome/browser/favicon/fallback_icon_service_factory.h"
 #include "chrome/browser/favicon/favicon_service_factory.h"
 #include "chrome/browser/history/chrome_history_client.h"
 #include "chrome/browser/history/chrome_history_client_factory.h"
 #include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/history/top_sites_factory.h"
 #include "chrome/browser/history/top_sites_impl.h"
 #include "chrome/browser/history/web_history_service_factory.h"
 #include "chrome/browser/net/pref_proxy_config_tracker.h"
 #include "chrome/browser/net/proxy_service_factory.h"
 #include "chrome/browser/notifications/desktop_notification_service.h"
@@ skipping 13 matching lines @@
 #include "chrome/common/chrome_constants.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/history_index_restore_observer.h"
 #include "chrome/test/base/testing_pref_service_syncable.h"
 #include "components/autofill/core/browser/webdata/autofill_webdata_service.h"
 #include "components/bookmarks/browser/bookmark_model.h"
 #include "components/bookmarks/common/bookmark_constants.h"
 #include "components/content_settings/core/browser/host_content_settings_map.h"
+#include "components/favicon/core/fallback_icon_service.h"
 #include "components/favicon/core/favicon_service.h"
 #include "components/history/content/browser/content_visit_delegate.h"
 #include "components/history/content/browser/history_database_helper.h"
 #include "components/history/core/browser/history_backend.h"
 #include "components/history/core/browser/history_constants.h"
 #include "components/history/core/browser/history_database_params.h"
 #include "components/history/core/browser/history_db_task.h"
 #include "components/history/core/browser/history_service.h"
 #include "components/history/core/browser/top_sites.h"
 #include "components/history/core/browser/top_sites_observer.h"
@@ skipping 139 matching lines @@
   scoped_ptr<net::URLRequestContext> context_;
 };
 
 #if defined(ENABLE_NOTIFICATIONS)
 KeyedService* CreateTestDesktopNotificationService(
     content::BrowserContext* profile) {
   return new DesktopNotificationService(static_cast<Profile*>(profile));
 }
 #endif
 
+KeyedService* BuildFallbackIconService(content::BrowserContext* context) {
+  Profile* profile = Profile::FromBrowserContext(context);
+  return new FallbackIconService(
+      ChromeFallbackIconClientFactory::GetForProfile(profile));
+}
+
 KeyedService* BuildFaviconService(content::BrowserContext* context) {
   Profile* profile = Profile::FromBrowserContext(context);
   return new FaviconService(ChromeFaviconClientFactory::GetForProfile(profile),
                             HistoryServiceFactory::GetForProfile(
                                 profile, ServiceAccessType::EXPLICIT_ACCESS));
 }
 
 KeyedService* BuildHistoryService(content::BrowserContext* context) {
   Profile* profile = Profile::FromBrowserContext(context);
   history::HistoryService* history_service = new history::HistoryService(
@@ skipping 337 matching lines @@
   // Failing a post == leaks == heapcheck failure. Make that an immediate test
   // failure.
   if (resource_context_) {
     CHECK(BrowserThread::DeleteSoon(BrowserThread::IO, FROM_HERE,
                                     resource_context_));
     resource_context_ = NULL;
     content::RunAllPendingInMessageLoop(BrowserThread::IO);
   }
 }
 
+void TestingProfile::CreateFallbackIconService() {
+  FaviconServiceFactory::GetInstance()->SetTestingFactory(
+      this, BuildFallbackIconService);
+}
+
 void TestingProfile::CreateFaviconService() {
   // It is up to the caller to create the history service if one is needed.
   FaviconServiceFactory::GetInstance()->SetTestingFactory(
       this, BuildFaviconService);
 }
 
 bool TestingProfile::CreateHistoryService(bool delete_file, bool no_db) {
   DestroyHistoryService();
   if (delete_file) {
     base::FilePath path = GetPath();
@@ skipping 540 matching lines @@
 #if defined(ENABLE_EXTENSIONS)
                             extension_policy_,
 #endif
                             pref_service_.Pass(),
                             original_profile,
                             guest_session_,
                             supervised_user_id_,
                             policy_service_.Pass(),
                             testing_factories_);
 }