Banish boilerplate. Profile-keyed API factory for extension API classes.

chrome/browser/extensions/api/processes/processes_api.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/extensions/api/processes/processes_api.h"
 
 #include "base/callback.h"
 #include "base/json/json_writer.h"
+#include "base/lazy_instance.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
 #include "base/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 
 #include "chrome/browser/extensions/api/processes/processes_api_constants.h"
-#include "chrome/browser/extensions/api/processes/processes_api_factory.h"
 #include "chrome/browser/extensions/api/tabs/tabs_constants.h"
 #include "chrome/browser/extensions/event_router.h"
 #include "chrome/browser/extensions/extension_function_registry.h"
 #include "chrome/browser/extensions/extension_function_util.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/task_manager/task_manager.h"
 #include "chrome/common/chrome_notification_types.h"
@@ skipping 472 matching lines @@
 
 ProcessesAPI::~ProcessesAPI() {
 }
 
 void ProcessesAPI::Shutdown() {
   ExtensionSystem::Get(profile_)->event_router()->UnregisterObserver(this);
 }
 
 // static
 ProcessesAPI* ProcessesAPI::Get(Profile* profile) {
-  return ProcessesAPIFactory::GetForProfile(profile);
+  return ProfileKeyedAPIFactory<ProcessesAPI>::GetForProfile(profile);
 }
 
 ProcessesEventRouter* ProcessesAPI::processes_event_router() {
   if (!processes_event_router_)
     processes_event_router_.reset(new ProcessesEventRouter(profile_));
   return processes_event_router_.get();
 }
 
 void ProcessesAPI::OnListenerAdded(const EventListenerInfo& details) {
   // We lazily tell the TaskManager to start updating when listeners to the
   // processes.onUpdated or processes.onUpdatedWithMemory events arrive.
   processes_event_router()->ListenerAdded();
 }
 
 void ProcessesAPI::OnListenerRemoved(const EventListenerInfo& details) {
   // If a processes.onUpdated or processes.onUpdatedWithMemory event listener
   // is removed (or a process with one exits), then we let the extension API
   // know that it has one fewer listener.
   processes_event_router()->ListenerRemoved();
 }
 
+static base::LazyInstance<ProfileKeyedAPIFactory<ProcessesAPI> >
+g_factory = LAZY_INSTANCE_INITIALIZER;
+
+template <>
+ProfileKeyedAPIFactory<ProcessesAPI>*
+ProfileKeyedAPIFactory<ProcessesAPI>::GetInstance() {
+  return &g_factory.Get();
+}
+
 GetProcessIdForTabFunction::GetProcessIdForTabFunction() : tab_id_(-1) {
 }
 
 bool GetProcessIdForTabFunction::RunImpl() {
 #if defined(ENABLE_TASK_MANAGER)
   EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &tab_id_));
 
   // Add a reference, which is balanced in GetProcessIdForTab to keep the object
   // around and allow for the callback to be invoked.
   AddRef();
@@ skipping 223 matching lines @@
 
   SetResult(processes);
   SendResponse(true);
 
   // Balance the AddRef in the RunImpl.
   Release();
 #endif  // defined(ENABLE_TASK_MANAGER)
 }
 
 }  // namespace extensions