Remove the DownloadItem::TogglePause() interface.

chrome/browser/download/download_shelf_context_menu.cc

Index: chrome/browser/download/download_shelf_context_menu.cc
diff --git a/chrome/browser/download/download_shelf_context_menu.cc b/chrome/browser/download/download_shelf_context_menu.cc
index 43c85ed2a6390c998bfad5f644934000a02593ae..64236f700e7f41f9a198f97df191d70e127cd0e6 100644
--- a/chrome/browser/download/download_shelf_context_menu.cc
+++ b/chrome/browser/download/download_shelf_context_menu.cc
@@ -112,8 +112,12 @@ void DownloadShelfContextMenu::ExecuteCommand(int command_id) {
       // 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_item_->IsPartialDownload())
-        download_item_->TogglePause();
+      if (download_item_->IsPartialDownload()) {
+        if (download_item_->IsPaused())
+          download_item_->Resume();
+        else
+          download_item_->Pause();
+      }
       break;
     case DISCARD:
       download_item_->Delete(DownloadItem::DELETE_DUE_TO_USER_DISCARD);