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

chrome/test/mini_installer_test/installer_test_util.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/test/mini_installer_test/installer_test_util.h"
 
 #include "base/file_util.h"
 #include "base/path_service.h"
 #include "base/process/kill.h"
 #include "base/process/launch.h"
@@ skipping 91 matching lines @@
   installer_test::InstalledProduct current_prod;
   for (int i = 0; i < 2; ++i) {
     const bool system_level = (i != 0);
     InstallationValidator::InstallationType type =
         InstallationValidator::NO_PRODUCTS;
     bool is_valid =
         InstallationValidator::ValidateInstallationType(system_level, &type);
     if (type != InstallationValidator::NO_PRODUCTS) {
       current_dist = BrowserDistribution::GetSpecificDistribution(
           ToBrowserDistributionType(type));
-      Version version;
+      base::Version version;
       InstallUtil::GetChromeVersion(current_dist, system_level, &version);
       if (version.IsValid()) {
         current_prod.type = type;
         current_prod.version = version.GetString();
         current_prod.system = system_level;
         products->push_back(current_prod);
       }
     }
   }
   return !products->empty();
@@ skipping 167 matching lines @@
     return false;
   }
   if (!base::WaitForSingleProcess(process, base::TimeDelta::FromMinutes(1))) {
     LOG(ERROR) << "Launched process did not complete.";
     return false;
   }
   return true;
 }
 
 }  // namespace