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

chrome/browser/profiles/profile_impl.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/browser/profiles/profile_impl.h"
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ skipping 802 matching lines @@
         predictor_));
   }
 
   SchedulePrefsFileVerification(GetPrefFilePath());
 
   ChromeVersionService::OnProfileLoaded(prefs_.get(), IsNewProfile());
   DoFinalInit();
 }
 
 bool ProfileImpl::WasCreatedByVersionOrLater(const std::string& version) {
-  Version profile_version(ChromeVersionService::GetVersion(prefs_.get()));
-  Version arg_version(version);
+  base::Version profile_version(ChromeVersionService::GetVersion(prefs_.get()));
+  base::Version arg_version(version);
   return (profile_version.CompareTo(arg_version) >= 0);
 }
 
 void ProfileImpl::SetExitType(ExitType exit_type) {
 #if defined(OS_CHROMEOS)
   if (chromeos::ProfileHelper::IsSigninProfile(this))
     return;
 #endif
   if (!prefs_)
     return;
@@ skipping 415 matching lines @@
 PrefProxyConfigTracker* ProfileImpl::CreateProxyConfigTracker() {
 #if defined(OS_CHROMEOS)
   if (chromeos::ProfileHelper::IsSigninProfile(this)) {
     return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfLocalState(
         g_browser_process->local_state());
   }
 #endif  // defined(OS_CHROMEOS)
   return ProxyServiceFactory::CreatePrefProxyConfigTrackerOfProfile(
       GetPrefs(), g_browser_process->local_state());
 }