Componentize VersionInfo.

chrome/common/extensions/features/feature_channel.cc

 // Copyright 2013 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/common/extensions/features/feature_channel.h"
 
 using chrome::VersionInfo;
 
 namespace {
 
-const VersionInfo::Channel kDefaultChannel = VersionInfo::CHANNEL_STABLE;
-VersionInfo::Channel g_current_channel = kDefaultChannel;
+const version_info::Channel kDefaultChannel = version_info::Channel::STABLE;
+version_info::Channel g_current_channel = kDefaultChannel;
 
 }  // namespace
 
 namespace extensions {
 
-VersionInfo::Channel GetCurrentChannel() {
+version_info::Channel GetCurrentChannel() {
   return g_current_channel;
 }
 
-void SetCurrentChannel(VersionInfo::Channel channel) {
+void SetCurrentChannel(version_info::Channel channel) {
   g_current_channel = channel;
 }
 
-VersionInfo::Channel GetDefaultChannel() {
+version_info::Channel GetDefaultChannel() {
   return kDefaultChannel;
 }
 
-ScopedCurrentChannel::ScopedCurrentChannel(VersionInfo::Channel channel)
-    : original_channel_(VersionInfo::CHANNEL_UNKNOWN) {
+ScopedCurrentChannel::ScopedCurrentChannel(version_info::Channel channel)
+    : original_channel_(version_info::Channel::UNKNOWN) {
   original_channel_ = GetCurrentChannel();
   SetCurrentChannel(channel);
 }
 
 ScopedCurrentChannel::~ScopedCurrentChannel() {
   SetCurrentChannel(original_channel_);
 }
 
 }  // namespace extensions