Componentize VersionInfo.

chrome/common/chrome_version_info_mac.mm

 // 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/common/chrome_version_info.h"
 
 #import <Foundation/Foundation.h>
 
 #include "base/basictypes.h"
 #include "base/mac/bundle_locations.h"
@@ skipping 25 matching lines @@
     channel = @"unknown";
   }
 
   return base::SysNSStringToUTF8(channel);
 #else
   return std::string();
 #endif
 }
 
 // static
-VersionInfo::Channel VersionInfo::GetChannel() {
+version_info::Channel VersionInfo::GetChannel() {
 #if defined(GOOGLE_CHROME_BUILD)
   std::string channel = GetVersionStringModifier();
   if (channel.empty()) {
-    return CHANNEL_STABLE;
+    return version_info::Channel::STABLE;
   } else if (channel == "beta") {
-    return CHANNEL_BETA;
+    return version_info::Channel::BETA;
   } else if (channel == "dev") {
-    return CHANNEL_DEV;
+    return version_info::Channel::DEV;
   } else if (channel == "canary") {
-    return CHANNEL_CANARY;
+    return version_info::Channel::CANARY;
   }
 #endif
 
-  return CHANNEL_UNKNOWN;
+  return version_info::Channel::UNKNOWN;
 }
 
 }  // namespace chrome