3rd part of porting Chrome Ash to Windows 7

chrome/browser/metro_utils/metro_chrome_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/metro_utils/metro_chrome_win.h"
 
 #include <windows.h>
 #include <shobjidl.h>
 
 #include "base/files/file_path.h"
 #include "base/path_service.h"
 #include "base/win/metro.h"
 #include "base/win/scoped_com_initializer.h"
 #include "base/win/scoped_comptr.h"
+#include "base/win/windows_version.h"
 #include "chrome/installer/util/browser_distribution.h"
 #include "chrome/installer/util/install_util.h"
 #include "chrome/installer/util/shell_util.h"
 
 namespace chrome {
 
 bool ActivateMetroChrome() {
+  // TODO(cpu): For Win7 we need to activate differently.
+  if (base::win::GetVersion() < base::win::VERSION_WIN8)
+    return true;
+
   base::FilePath chrome_exe;
   if (!PathService::Get(base::FILE_EXE, &chrome_exe)) {
     NOTREACHED() << "Failed to get chrome exe path";
     return false;
   }
 
   base::string16 app_id = ShellUtil::GetBrowserModelId(
       BrowserDistribution::GetDistribution(),
       InstallUtil::IsPerUserInstall(chrome_exe.value().c_str()));
   if (app_id.empty()) {
@@ skipping 33 matching lines @@
 #else
   if (base::win::IsProcessImmersive(::GetCurrentProcess()))
     return WIN_8_ENVIRONMENT_METRO;
   else
     return WIN_8_ENVIRONMENT_DESKTOP;
 #endif
 }
 
 
 }  // namespace chrome