Fixed a crash while opening the file open/save dialogs on Windows 7 ASH.

chrome/browser/ui/views/ash/chrome_browser_main_extra_parts_ash.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/ui/views/ash/chrome_browser_main_extra_parts_ash.h"
 
 #include "ash/root_window_controller.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "base/command_line.h"
@@ skipping 13 matching lines @@
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/ui/views/select_file_dialog_extension.h"
 #include "chrome/browser/ui/views/select_file_dialog_extension_factory.h"
 #endif
 
 #if !defined(OS_CHROMEOS)
 #include "ui/shell_dialogs/select_file_dialog.h"
 #include "ui/shell_dialogs/shell_dialogs_delegate.h"
 #endif
 
+#if defined(OS_WIN)
+#include "base/win/windows_version.h"
+#endif
+
 #if !defined(OS_CHROMEOS)
 class ScreenTypeDelegateWin : public gfx::ScreenTypeDelegate {
  public:
   ScreenTypeDelegateWin() {}
   virtual gfx::ScreenType GetScreenTypeForNativeView(
       gfx::NativeView view) OVERRIDE {
     return chrome::IsNativeViewInAsh(view) ?
         gfx::SCREEN_TYPE_ALTERNATE :
         gfx::SCREEN_TYPE_NATIVE;
   }
  private:
   DISALLOW_COPY_AND_ASSIGN(ScreenTypeDelegateWin);
 };
 
 class ShellDialogsDelegateWin : public ui::ShellDialogsDelegate {
  public:
   ShellDialogsDelegateWin() {}
   virtual bool IsWindowInMetro(gfx::NativeWindow window) OVERRIDE {
+#if defined(OS_WIN)
+    if (base::win::GetVersion() < base::win::VERSION_WIN8)
+      return false;
+#endif
     return chrome::IsNativeViewInAsh(window);
   }
  private:
   DISALLOW_COPY_AND_ASSIGN(ShellDialogsDelegateWin);
 };
 
 base::LazyInstance<ShellDialogsDelegateWin> g_shell_dialogs_delegate;
 
 #endif
 
@@ skipping 41 matching lines @@
   // activation to UpdateWindow() in virtual_keyboard_window_controller.cc.
   if (!keyboard::IsKeyboardUsabilityExperimentEnabled()) {
     ash::Shell::GetPrimaryRootWindowController()->ActivateKeyboard(
         keyboard::KeyboardController::GetInstance());
   }
 }
 
 void ChromeBrowserMainExtraPartsAsh::PostMainMessageLoopRun() {
   chrome::CloseAsh();
 }