Show a notification when an ephemeral app consumes excessive disk space

chrome/browser/extensions/extension_storage_monitor_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/extensions/extension_storage_monitor_factory.h"
+
+#include "chrome/browser/extensions/extension_storage_monitor.h"
+#include "chrome/browser/extensions/extension_system_factory.h"
+#include "components/keyed_service/content/browser_context_dependency_manager.h"
+#include "extensions/browser/extension_prefs_factory.h"
+#include "extensions/browser/extensions_browser_client.h"
+
+namespace extensions {
+
+// static
+ExtensionStorageMonitor*
+ExtensionStorageMonitorFactory::GetForBrowserContext(
+    content::BrowserContext* context) {
+  return static_cast<ExtensionStorageMonitor*>(
+      GetInstance()->GetServiceForBrowserContext(context, true));
+}
+
+// static
+ExtensionStorageMonitorFactory* ExtensionStorageMonitorFactory::GetInstance() {
+  return Singleton<ExtensionStorageMonitorFactory>::get();
+}
+
+ExtensionStorageMonitorFactory::ExtensionStorageMonitorFactory()
+    : BrowserContextKeyedServiceFactory(
+          "ExtensionStorageMonitor",
+          BrowserContextDependencyManager::GetInstance()) {
+  DependsOn(ExtensionsBrowserClient::Get()->GetExtensionSystemFactory());
+  DependsOn(ExtensionPrefsFactory::GetInstance());

[koz (OOO until 15th September), 2014/04/07 05:24:32]

Does MessageCenter have a factory to DependsOn() here?

[tmdiep, 2014/04/07 08:45:01]

It's a global object, so there's no factory for it.

+}
+
+ExtensionStorageMonitorFactory::~ExtensionStorageMonitorFactory() {
+}
+
+KeyedService* ExtensionStorageMonitorFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  return new ExtensionStorageMonitor(context);
+}
+
+content::BrowserContext* ExtensionStorageMonitorFactory::GetBrowserContextToUse(
+    content::BrowserContext* context) const {
+  return ExtensionsBrowserClient::Get()->GetOriginalContext(context);
+}
+
+bool ExtensionStorageMonitorFactory::ServiceIsCreatedWithBrowserContext()
+    const {
+  return true;
+}
+
+bool ExtensionStorageMonitorFactory::ServiceIsNULLWhileTesting() const {
+  return true;
+}
+
+}  // namespace extensions