Removing useless Win7 checks + standardize its use

chrome/browser/ui/views/frame/browser_window_property_manager_win.cc

 // Copyright 2013 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/ui/views/frame/browser_window_property_manager_win.h"
 
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/win/windows_version.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 79 matching lines @@
   }
   ui::win::SetAppDetailsForWindow(app_id, icon_path, 0, command_line_string,
                                   pinned_name, hwnd_);
 }
 
 // static
 std::unique_ptr<BrowserWindowPropertyManager>
 BrowserWindowPropertyManager::CreateBrowserWindowPropertyManager(
     BrowserView* view,
     HWND hwnd) {
-  if (base::win::GetVersion() < base::win::VERSION_WIN7)
-    return nullptr;
-
   std::unique_ptr<BrowserWindowPropertyManager> browser_window_property_manager(
       new BrowserWindowPropertyManager(view, hwnd));
   browser_window_property_manager->UpdateWindowProperties();
   return browser_window_property_manager;
 }
 
 void BrowserWindowPropertyManager::OnProfileIconVersionChange() {
   UpdateWindowProperties();
 }