Modify languageSettingsPrivate IDL and flesh out stub implementation

chrome/browser/extensions/api/language_settings_private/language_settings_private_delegate_factory.cc

Index: chrome/browser/extensions/api/language_settings_private/language_settings_private_delegate_factory.cc
diff --git a/chrome/browser/extensions/api/language_settings_private/language_settings_private_delegate_factory.cc b/chrome/browser/extensions/api/language_settings_private/language_settings_private_delegate_factory.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4c3f45aa499bfd5d170cbdc01454d5fe9be47dd0
--- /dev/null
+++ b/chrome/browser/extensions/api/language_settings_private/language_settings_private_delegate_factory.cc
@@ -0,0 +1,61 @@
+// 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/language_settings_private/language_settings_private_delegate_factory.h"
+
+#include "chrome/browser/extensions/api/language_settings_private/language_settings_private_delegate.h"
+#include "chrome/browser/spellchecker/spellcheck_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
+LanguageSettingsPrivateDelegate*
+LanguageSettingsPrivateDelegateFactory::GetForBrowserContext(
+    content::BrowserContext* context) {
+  return static_cast<LanguageSettingsPrivateDelegate*>(
+      GetInstance()->GetServiceForBrowserContext(context, true));
+}
+
+// static
+LanguageSettingsPrivateDelegateFactory*
+LanguageSettingsPrivateDelegateFactory::GetInstance() {
+  return Singleton<LanguageSettingsPrivateDelegateFactory>::get();
+}
+
+LanguageSettingsPrivateDelegateFactory::LanguageSettingsPrivateDelegateFactory()
+    : BrowserContextKeyedServiceFactory(
+          "LanguageSettingsPrivateDelegate",
+          BrowserContextDependencyManager::GetInstance()) {
+  DependsOn(ExtensionsBrowserClient::Get()->GetExtensionSystemFactory());
+}
+
+LanguageSettingsPrivateDelegateFactory::
+    ~LanguageSettingsPrivateDelegateFactory() {
+}
+
+KeyedService* LanguageSettingsPrivateDelegateFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  return LanguageSettingsPrivateDelegate::Create(context);
+}
+
+content::BrowserContext*
+LanguageSettingsPrivateDelegateFactory::GetBrowserContextToUse(
+    content::BrowserContext* context) const {
+  return ExtensionsBrowserClient::Get()->GetOriginalContext(context);
+}
+
+bool LanguageSettingsPrivateDelegateFactory::
+    ServiceIsCreatedWithBrowserContext() const {
+  return true;
+}
+
+bool LanguageSettingsPrivateDelegateFactory::ServiceIsNULLWhileTesting() const {
+  return false;
+}
+
+}  // namespace extensions