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

chrome/installer/util/browser_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 a class that contains various method related to branding.
 // It provides only default implementations of these methods. Usually to add
 // specific branding, we will need to extend this class with a custom
 // implementation.
 
 #include "chrome/installer/util/browser_distribution.h"
@@ skipping 118 matching lines @@
 #else
       dist = GetOrCreateBrowserDistribution<ChromiumBinariesDistribution>(
           &g_binaries_distribution);
 #endif
   }
 
   return dist;
 }
 
 void BrowserDistribution::DoPostUninstallOperations(
-    const Version& version, const base::FilePath& local_data_path,
+    const base::Version& version, const base::FilePath& local_data_path,
     const base::string16& distribution_data) {
 }
 
 base::string16 BrowserDistribution::GetActiveSetupGuid() {
   return kChromiumActiveSetupGuid;
 }
 
 base::string16 BrowserDistribution::GetAppGuid() {
   return L"";
 }
@@ skipping 145 matching lines @@
     installer::InstallStatus install_status) {
 }
 
 bool BrowserDistribution::ShouldSetExperimentLabels() {
   return false;
 }
 
 bool BrowserDistribution::HasUserExperiments() {
   return false;
 }