Use previous target path when resuming a download after crash

content/browser/download/download_item_impl_delegate.cc

Index: content/browser/download/download_item_impl_delegate.cc
diff --git a/content/browser/download/download_item_impl_delegate.cc b/content/browser/download/download_item_impl_delegate.cc
index 96be706eee0373c3021b95ce2b80db0f08bea110..3ebb7d94635657bd722034e039a4bbfda8f7803c 100644
--- a/content/browser/download/download_item_impl_delegate.cc
+++ b/content/browser/download/download_item_impl_delegate.cc
@@ -29,8 +29,9 @@ void DownloadItemImplDelegate::Detach() {
 
 void DownloadItemImplDelegate::DetermineDownloadTarget(
     DownloadItemImpl* download, const DownloadTargetCallback& callback) {
-  // TODO(rdsmith/asanka): Do something useful if forced file path is null.
-  base::FilePath target_path(download->GetForcedFilePath());
+  // TODO(qinmin): Do something useful if both forced file path and
+  // target file path are null.

[asanka, 2017/01/10 19:34:19]

Also note that this code path is unreachable in Chrome. It's just here since
this is //content and can't rely on //chrome replacing this implementation.

[qinmin, 2017/01/10 22:06:29]

Done

+  base::FilePath target_path = download->GetLastUsedTargetPath();
   callback.Run(target_path,
                DownloadItem::TARGET_DISPOSITION_OVERWRITE,
                DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS,