chrome.settingsPrivate: Implement onPrefsChanged event handling.

chrome/browser/extensions/api/settings_private/settings_private_event_router_factory.cc

Index: chrome/browser/extensions/api/settings_private/settings_private_event_router_factory.cc
diff --git a/chrome/browser/extensions/api/settings_private/settings_private_event_router_factory.cc b/chrome/browser/extensions/api/settings_private/settings_private_event_router_factory.cc
new file mode 100644
index 0000000000000000000000000000000000000000..86e9dafbf06771c31a33a79972bfd8ae978c24b1
--- /dev/null
+++ b/chrome/browser/extensions/api/settings_private/settings_private_event_router_factory.cc
@@ -0,0 +1,59 @@
+// Copyright 2015 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/settings_private/settings_private_delegate_factory.h"
+#include "chrome/browser/extensions/api/settings_private/settings_private_event_router.h"
+#include "chrome/browser/extensions/api/settings_private/settings_private_event_router_factory.h"
+#include "components/keyed_service/content/browser_context_dependency_manager.h"
+#include "content/public/browser/browser_context.h"
+#include "extensions/browser/extension_system_provider.h"
+#include "extensions/browser/extensions_browser_client.h"
+
+namespace extensions {
+
+// static
+SettingsPrivateEventRouter* SettingsPrivateEventRouterFactory::GetForProfile(
+    content::BrowserContext* context) {
+  return static_cast<SettingsPrivateEventRouter*>(
+      GetInstance()->GetServiceForBrowserContext(context, true));
+}
+
+// static
+SettingsPrivateEventRouterFactory*
+SettingsPrivateEventRouterFactory::GetInstance() {
+  return Singleton<SettingsPrivateEventRouterFactory>::get();
+}
+
+SettingsPrivateEventRouterFactory::SettingsPrivateEventRouterFactory()
+    : BrowserContextKeyedServiceFactory(
+          "SettingsPrivateEventRouter",
+          BrowserContextDependencyManager::GetInstance()) {
+  DependsOn(ExtensionsBrowserClient::Get()->GetExtensionSystemFactory());
+  DependsOn(SettingsPrivateDelegateFactory::GetInstance());
+}
+
+SettingsPrivateEventRouterFactory::~SettingsPrivateEventRouterFactory() {
+}
+
+KeyedService* SettingsPrivateEventRouterFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  return SettingsPrivateEventRouter::Create(context);
+}
+
+content::BrowserContext*
+SettingsPrivateEventRouterFactory::GetBrowserContextToUse(
+    content::BrowserContext* context) const {
+  return ExtensionsBrowserClient::Get()->GetOriginalContext(context);
+}
+
+bool SettingsPrivateEventRouterFactory::ServiceIsCreatedWithBrowserContext()
+    const {
+  return true;
+}
+
+bool SettingsPrivateEventRouterFactory::ServiceIsNULLWhileTesting() const {
+  return false;
+}
+
+}  // namespace extensions