Componentize VersionInfo.

chrome/browser/upgrade_detector_impl.cc

 // Copyright (c) 2012 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/upgrade_detector_impl.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/build_time.h"
@@ skipping 79 matching lines @@
   return kCheckForUpgradeMs;
 }
 
 // Return true if the current build is one of the unstable channels.
 bool IsUnstableChannel() {
   // TODO(mad): Investigate whether we still need to be on the file thread for
   // this. On Windows, the file thread used to be required for registry access
   // but no anymore. But other platform may still need the file thread.
   // crbug.com/366647.
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  chrome::VersionInfo::Channel channel = chrome::VersionInfo::GetChannel();
-  return channel == chrome::VersionInfo::CHANNEL_DEV ||
-         channel == chrome::VersionInfo::CHANNEL_CANARY;
+  version_info::Channel channel = chrome::VersionInfo::GetChannel();
+  return channel == version_info::CHANNEL_DEV ||
+         channel == version_info::CHANNEL_CANARY;
 }
 
 // This task identifies whether we are running an unstable version. And then it
 // unconditionally calls back the provided task.
 void CheckForUnstableChannel(const base::Closure& callback_task,
                              bool* is_unstable_channel) {
   *is_unstable_channel = IsUnstableChannel();
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE, callback_task);
 }
 
@@ skipping 394 matching lines @@
 
 // static
 UpgradeDetectorImpl* UpgradeDetectorImpl::GetInstance() {
   return Singleton<UpgradeDetectorImpl>::get();
 }
 
 // static
 UpgradeDetector* UpgradeDetector::GetInstance() {
   return UpgradeDetectorImpl::GetInstance();
 }