[Downloads] Add context parameter to help center article URL.

chrome/browser/download/download_commands.h

 // Copyright 2015 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.
 
 #ifndef CHROME_BROWSER_DOWNLOAD_DOWNLOAD_COMMANDS_H_
 #define CHROME_BROWSER_DOWNLOAD_DOWNLOAD_COMMANDS_H_
 
+#include "base/gtest_prod_util.h"
 #include "base/strings/string16.h"
-
 #include "chrome/browser/ui/browser.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/page_navigator.h"
 #include "ui/gfx/image/image.h"
 
 class DownloadCommands {
  public:
   enum Command {
     SHOW_IN_FOLDER = 1,   // Open a folder view window with the item selected.
     OPEN_WHEN_COMPLETE,   // Open the download when it's finished.
@@ skipping 20 matching lines @@
   bool IsCommandVisible(Command command) const;
   void ExecuteCommand(Command command);
 
 #if defined(OS_WIN) || defined(OS_LINUX) || \
     (defined(OS_MACOSX) && !defined(OS_IOS))
   bool IsDownloadPdf() const;
   bool CanOpenPdfInSystemViewer() const;
 #endif
 
  private:
+  FRIEND_TEST_ALL_PREFIXES(
+      DownloadCommandsTest,
+      GetLearnMoreURLForInterruptedDownload_ContainsContext);
+
   Browser* GetBrowser() const;
-
-  int GetCommandIconId(Command command);
-
-  int GetAlwaysOpenStringId() const;
+  int GetCommandIconId(Command command) const;
+  GURL GetLearnMoreURLForInterruptedDownload() const;
 
   content::DownloadItem* const download_item_;
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_COMMANDS_H_