Update all users of base::Version to explicitly specify the namespace, and clean up the header.

chrome/installer/util/google_chrome_distribution.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.
 //
 // This file defines specific implementation of BrowserDistribution class for
 // Google Chrome.
 
 #include "chrome/installer/util/google_chrome_distribution.h"
 
 #include <windows.h>
@@ skipping 49 matching lines @@
 }
 
 }  // namespace
 
 GoogleChromeDistribution::GoogleChromeDistribution()
     : BrowserDistribution(CHROME_BROWSER),
       product_guid_(kChromeGuid) {
 }
 
 void GoogleChromeDistribution::DoPostUninstallOperations(
-    const Version& version,
+    const base::Version& version,
     const base::FilePath& local_data_path,
     const base::string16& distribution_data) {
   // Send the Chrome version and OS version as params to the form.
   // It would be nice to send the locale, too, but I don't see an
   // easy way to get that in the existing code. It's something we
   // can add later, if needed.
   // We depend on installed_version.GetString() not having spaces or other
   // characters that need escaping: 0.2.13.4. Should that change, we will
   // need to escape the string before using it in a URL.
   const base::string16 kVersionParam = L"crversion";
@@ skipping 216 matching lines @@
       product_guid());
 }
 
 bool GoogleChromeDistribution::ShouldSetExperimentLabels() {
   return true;
 }
 
 bool GoogleChromeDistribution::HasUserExperiments() {
   return true;
 }