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

components/cast_channel/cast_socket_service.cc

Index: components/cast_channel/cast_socket_service.cc
diff --git a/extensions/browser/api/cast_channel/cast_socket_service.cc b/components/cast_channel/cast_socket_service.cc
similarity index 83%
rename from extensions/browser/api/cast_channel/cast_socket_service.cc
rename to components/cast_channel/cast_socket_service.cc
index bbf054220b66db044c0a6fd39517e632616580a9..b7ff1cb17492ab417e60cc223aeb50e730a35eac 100644
--- a/extensions/browser/api/cast_channel/cast_socket_service.cc
+++ b/components/cast_channel/cast_socket_service.cc
@@ -2,12 +2,10 @@
 // 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.h"
+#include "components/cast_channel/cast_socket_service.h"
 
 #include "base/memory/ptr_util.h"
 
-namespace extensions {
-namespace api {
 namespace cast_channel {
 
 int CastSocketRegistry::last_channel_id_ = 0;
@@ -27,7 +25,8 @@ int CastSocketRegistry::AddSocket(std::unique_ptr<CastSocket> socket) {
   return id;
 }
 
-std::unique_ptr<CastSocket> CastSocketRegistry::RemoveSocket(int channel_id) {
+std::unique_ptr<::cast_channel::CastSocket> CastSocketRegistry::RemoveSocket(
+    int channel_id) {
   DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
   DCHECK(channel_id > 0);
   auto socket_it = sockets_.find(channel_id);
@@ -40,7 +39,8 @@ std::unique_ptr<CastSocket> CastSocketRegistry::RemoveSocket(int channel_id) {
   return socket;
 }
 
-CastSocket* CastSocketRegistry::GetSocket(int channel_id) const {
+::cast_channel::CastSocket* CastSocketRegistry::GetSocket(
+    int channel_id) const {
   DCHECK_CALLED_ON_VALID_THREAD(thread_checker_);
   DCHECK(channel_id > 0);
   const auto& socket_it = sockets_.find(channel_id);
@@ -58,5 +58,3 @@ CastSocketRegistry* CastSocketService::GetOrCreateSocketRegistry() {
 }
 
 }  // namespace cast_channel
-}  // namespace api
-}  // namespace extensions