Componentize VersionInfo.

chrome/common/extensions/manifest_tests/chrome_manifest_test.cc

 // Copyright 2014 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/manifest_tests/chrome_manifest_test.h"
 
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_version_info.h"
 
 ChromeManifestTest::ChromeManifestTest()
     // CHANNEL_UNKNOWN == trunk.
-    : current_channel_(chrome::VersionInfo::CHANNEL_UNKNOWN) {}
+    : current_channel_(version_info::Channel::UNKNOWN) {}
 
 ChromeManifestTest::~ChromeManifestTest() {
 }
 
 base::FilePath ChromeManifestTest::GetTestDataDir() {
   base::FilePath path;
   PathService::Get(chrome::DIR_TEST_DATA, &path);
   return path.AppendASCII("extensions").AppendASCII("manifest_tests");
 }