Consolidate manifest handler registration.

chrome/browser/extensions/api/system_indicator/system_indicator_api.cc

Index: chrome/browser/extensions/api/system_indicator/system_indicator_api.cc
diff --git a/chrome/browser/extensions/api/system_indicator/system_indicator_api.cc b/chrome/browser/extensions/api/system_indicator/system_indicator_api.cc
deleted file mode 100644
index 212a296db1a94eecd907ac649f55e68a860dcda8..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/api/system_indicator/system_indicator_api.cc
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright (c) 2013 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/system_indicator/system_indicator_api.h"
-
-#include "base/lazy_instance.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/common/extensions/api/system_indicator/system_indicator_handler.h"
-
-namespace extensions {
-
-SystemIndicatorAPI::SystemIndicatorAPI(Profile* profile) {
-  (new SystemIndicatorHandler)->Register();
-}
-
-SystemIndicatorAPI::~SystemIndicatorAPI() {
-}
-
-static base::LazyInstance<ProfileKeyedAPIFactory<SystemIndicatorAPI> >
-    g_factory = LAZY_INSTANCE_INITIALIZER;
-
-// static
-ProfileKeyedAPIFactory<SystemIndicatorAPI>*
-SystemIndicatorAPI::GetFactoryInstance() {
-  return &g_factory.Get();
-}
-
-}  // namespace extensions