Add pause and resume to Linux download shelf.

chrome/browser/download/download_shelf.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/download/download_shelf.h"
 
 #include "app/l10n_util.h"
 #include "base/file_util.h"
 #include "chrome/browser/browser.h"
 #include "chrome/browser/dom_ui/downloads_ui.h"
@@ skipping 10 matching lines @@
     BaseDownloadItemModel* download_model)
     : download_(download_model->download()),
       model_(download_model) {
 }
 
 DownloadShelfContextMenu::~DownloadShelfContextMenu() {
 }
 
 bool DownloadShelfContextMenu::ItemIsChecked(int id) const {
   switch (id) {
-    case OPEN_WHEN_COMPLETE:
+    case OPEN_WHEN_COMPLETE: {
       return download_->open_when_complete();
+    }
     case ALWAYS_OPEN_TYPE: {
       const FilePath::StringType extension =
           file_util::GetFileExtensionFromPath(download_->full_path());
       return download_->manager()->ShouldOpenFileExtension(extension);
     }
+    case TOGGLE_PAUSE: {
+      return download_->is_paused();
+    }
   }
   return false;
 }
 
 bool DownloadShelfContextMenu::ItemIsDefault(int id) const {
   return id == OPEN_WHEN_COMPLETE;
 }
 
 std::wstring DownloadShelfContextMenu::GetItemLabel(int id) const {
   switch (id) {
@@ skipping 65 matching lines @@
       // It is possible for the download to complete before the user clicks the
       // menu item, recheck if the download is in progress state before toggling
       // pause.
       if (download_->state() == DownloadItem::IN_PROGRESS)
         download_->TogglePause();
       break;
     default:
       NOTREACHED();
   }
 }