When the download folder does not exist, change the download folder to a user's "Downloads"

chrome/browser/download/download_util.cc

Index: chrome/browser/download/download_util.cc
diff --git a/chrome/browser/download/download_util.cc b/chrome/browser/download/download_util.cc
index 06c03b2b38b9b3e2e34ee3dcb2fb75043f7e8770..ebaac451da4d6fe8a9bff5178146317ac77f040d 100644
--- a/chrome/browser/download/download_util.cc
+++ b/chrome/browser/download/download_util.cc
@@ -203,36 +203,16 @@ void GenerateFileNameInternal(const GURL& url,
 
 // Download temporary file creation --------------------------------------------
 
-class DefaultDownloadDirectory {
- public:
-  const FilePath& path() const { return path_; }
- private:
-  DefaultDownloadDirectory() {
-    if (!PathService::Get(chrome::DIR_DEFAULT_DOWNLOADS, &path_)) {
+FilePath GetDefaultDownloadDirectoryFromPathService() {
+  FilePath default_download_dir;
+  if (!PathService::Get(chrome::DIR_DEFAULT_DOWNLOADS, &default_download_dir))
+    NOTREACHED();
+  if (DownloadPathIsDangerous(default_download_dir)) {
+    if (!PathService::Get(chrome::DIR_DEFAULT_DOWNLOADS_SAFE,
+                          &default_download_dir))
       NOTREACHED();
-    }
-    if (DownloadPathIsDangerous(path_)) {
-      if (!PathService::Get(chrome::DIR_DEFAULT_DOWNLOADS_SAFE, &path_)) {
-        NOTREACHED();
-      }
-    }
   }
-  friend struct base::DefaultLazyInstanceTraits<DefaultDownloadDirectory>;
-  FilePath path_;
-};
-
-static base::LazyInstance<DefaultDownloadDirectory>
-    g_default_download_directory(base::LINKER_INITIALIZED);
-
-const FilePath& GetDefaultDownloadDirectory() {
-  return g_default_download_directory.Get().path();
-}
-
-bool CreateTemporaryFileForDownload(FilePath* temp_file) {
-  if (file_util::CreateTemporaryFileInDir(GetDefaultDownloadDirectory(),
-                                          temp_file))
-    return true;
-  return file_util::CreateTemporaryFile(temp_file);
+  return default_download_dir;
 }
 
 bool DownloadPathIsDangerous(const FilePath& download_path) {