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

components/cast_channel/cast_socket_service_factory.cc

 // 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/cast_channel/cast_socket_service_factory.h"
 
+#include "components/cast_channel/cast_socket_service.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
 
@@ skipping 23 matching lines @@
     content::BrowserContext* context) const {
   return context;
 }
 
 KeyedService* CastSocketServiceFactory::BuildServiceInstanceFor(
     BrowserContext* context) const {
   return new CastSocketService();
 }
 
 }  // namespace cast_channel
-}  // namespace api
-}  // namespace extensions