Revert of [cast_channel] Move cast_channel related files from //extensions to //components

extensions/browser/api/cast_channel/cast_socket_service_factory.cc

Index: extensions/browser/api/cast_channel/cast_socket_service_factory.cc
diff --git a/extensions/browser/api/cast_channel/cast_socket_service_factory.cc b/extensions/browser/api/cast_channel/cast_socket_service_factory.cc
new file mode 100644
index 0000000000000000000000000000000000000000..88e1893a62a0149cee5c968a6a3dac82ccd30680
--- /dev/null
+++ b/extensions/browser/api/cast_channel/cast_socket_service_factory.cc
@@ -0,0 +1,57 @@
+// Copyright 2017 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 "extensions/browser/api/cast_channel/cast_socket_service_factory.h"
+
+#include "components/keyed_service/content/browser_context_dependency_manager.h"
+#include "extensions/browser/api/cast_channel/cast_socket_service.h"
+
+namespace extensions {
+namespace api {
+namespace cast_channel {
+
+using content::BrowserContext;
+
+namespace {
+
+base::LazyInstance<CastSocketServiceFactory>::DestructorAtExit service_factory =
+    LAZY_INSTANCE_INITIALIZER;
+}  // namespace
+
+// static
+scoped_refptr<CastSocketService> CastSocketServiceFactory::GetForBrowserContext(
+    BrowserContext* context) {
+  DCHECK(context);
+  // GetServiceForBrowserContext returns a KeyedService hence the static_cast<>
+  // to construct a temporary scoped_refptr on the stack for the return value.
+  return static_cast<CastSocketService*>(
+      service_factory.Get().GetServiceForBrowserContext(context, true).get());
+}
+
+// static
+CastSocketServiceFactory* CastSocketServiceFactory::GetInstance() {
+  return &service_factory.Get();
+}
+
+CastSocketServiceFactory::CastSocketServiceFactory()
+    : RefcountedBrowserContextKeyedServiceFactory(
+          "CastSocketService",
+          BrowserContextDependencyManager::GetInstance()) {}
+
+CastSocketServiceFactory::~CastSocketServiceFactory() {}
+
+content::BrowserContext* CastSocketServiceFactory::GetBrowserContextToUse(
+    content::BrowserContext* context) const {
+  return context;
+}
+
+scoped_refptr<RefcountedKeyedService>
+CastSocketServiceFactory::BuildServiceInstanceFor(
+    BrowserContext* context) const {
+  return make_scoped_refptr(new CastSocketService());
+}
+
+}  // namespace cast_channel
+}  // namespace api
+}  // namespace extensions