Revert "Linux Extensions Install Prompt"

chrome/browser/extensions/extension_install_ui.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/extension_install_ui.h"
 
 #include <map>
 
 #include "app/l10n_util.h"
 #include "base/file_util.h"
@@ skipping 28 matching lines @@
   if (extension->IsTheme()) {
     // Remember the current theme in case the user pressed undo.
     Extension* previous_theme = profile_->GetTheme();
     if (previous_theme)
       previous_theme_id_ = previous_theme->id();
 
     delegate->ContinueInstall();
     return;
   }
 
-#if defined(OS_WIN) || defined(OS_LINUX)
+#if defined(OS_WIN)
   ShowExtensionInstallPrompt(profile_, delegate, extension, install_icon);
 
 #elif defined(OS_MACOSX)
   // TODO(port): Implement nicer UI.
   // Using CoreFoundation to do this dialog is unimaginably lame but will do
   // until the UI is redone.
   scoped_cftyperef<CFStringRef> product_name(
       base::SysWideToCFStringRef(l10n_util::GetString(IDS_PRODUCT_NAME)));
   CFOptionFlags response;
   if (kCFUserNotificationAlternateResponse == CFUserNotificationDisplayAlert(
@@ skipping 69 matching lines @@
 
   // Then either replace that old one or add a new one.
   InfoBarDelegate* new_delegate = new ThemePreviewInfobarDelegate(tab_contents,
       new_theme->name(), previous_theme_id_);
 
   if (old_delegate)
     tab_contents->ReplaceInfoBar(old_delegate, new_delegate);
   else
     tab_contents->AddInfoBar(new_delegate);
 }