Use GetForegroundWindow instead of GetActiveWindow because the former works o...

chrome/browser/extensions/extensions_service.cc

 // Copyright (c) 2009 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/extensions/extensions_service.h"
 
 #include "app/l10n_util.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/gfx/png_encoder.h"
@@ skipping 881 matching lines @@
   if (!extension.InitFromValue(manifest,
                                true,  // require ID
                                &error)) {
     ReportExtensionInstallError(extension_path, "Invalid extension manifest.");
     return;
   }
 
   if (!frontend_->extensions_enabled() && !extension.IsTheme()) {
 #if defined(OS_WIN)
     if (frontend_->show_extensions_prompts()) {
-      win_util::MessageBox(GetActiveWindow(),
+      win_util::MessageBox(GetForegroundWindow(),
           L"Extensions are not enabled. Add --enable-extensions to the "
           L"command-line to enable extensions.\n\n"
           L"This is a temporary message and it will be removed when extensions "
           L"UI is finalized.",
           l10n_util::GetString(IDS_PRODUCT_NAME).c_str(), MB_OK);
     }
 #endif
     ReportExtensionInstallError(extension_path,
         "Extensions are not enabled.");
     return;
   }
 
 #if defined(OS_WIN)
   if (!extension.IsTheme() && !from_external &&
       frontend_->show_extensions_prompts() &&
-      win_util::MessageBox(GetActiveWindow(),
+      win_util::MessageBox(GetForegroundWindow(),
           L"Are you sure you want to install this extension?\n\n"
           L"This is a temporary message and it will be removed when extensions "
           L"UI is finalized.",
           l10n_util::GetString(IDS_PRODUCT_NAME).c_str(),
           MB_OKCANCEL) != IDOK) {
     ReportExtensionInstallError(extension_path,
         "User did not allow extension to be installed.");
     return;
   }
 #endif
@@ skipping 294 matching lines @@
 }
 
 bool ExtensionsServiceBackend::ShouldInstall(const std::string& id,
                                              const Version* version) {
   FilePath dir(install_directory_.AppendASCII(id.c_str()));
   std::string current_version;
   if (ReadCurrentVersion(dir, &current_version))
     return CheckCurrentVersion(version->GetString(), current_version, dir);
   return true;
 }