Revert 155351 - Make DownloadManager::GetAllDownloads return all downloads regardless of state, per…

content/public/browser/download_manager.h

Index: content/public/browser/download_manager.h
===================================================================
--- content/public/browser/download_manager.h	(revision 155501)
+++ content/public/browser/download_manager.h	(working copy)
@@ -110,9 +110,11 @@
   virtual void GetTemporaryDownloads(const FilePath& dir_path,
                                      DownloadVector* result) = 0;
 
-  // Add all download items to |downloads|, no matter the type or state, without
-  // clearing |downloads| first.
-  virtual void GetAllDownloads(DownloadVector* downloads) = 0;
+  // If |dir_path| is empty, appends all non-temporary downloads to |*result|.
+  // Otherwise, appends all non-temporary downloads that reside in |dir_path|
+  // to |*result|.
+  virtual void GetAllDownloads(const FilePath& dir_path,
+                               DownloadVector* result) = 0;
 
   // Returns all non-temporary downloads matching |query|. Empty query matches
   // everything.