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

chrome/browser/ui/download/download_tab_helper.h

Index: chrome/browser/ui/download/download_tab_helper.h
diff --git a/chrome/browser/ui/download/download_tab_helper.h b/chrome/browser/ui/download/download_tab_helper.h
index ac559136eb7b74d2056acbd2bdd50d8c95cb87db..7f3f7e0c86e00852510dac9219a66d78dead8109 100644
--- a/chrome/browser/ui/download/download_tab_helper.h
+++ b/chrome/browser/ui/download/download_tab_helper.h
@@ -37,6 +37,14 @@ class DownloadTabHelper : public TabContentsObserver {
   bool SavePage(const FilePath& main_file, const FilePath& dir_path,
                 SavePackage::SavePackageType save_type);
 
+  // Save page. |website_save_dir| is the default folder for saving HTML.
+  // |download_save_dir| is the default folder for saving downloaded files.
+  // |save_type| is HTML only or complete web page.
+  // Returns the title of saved page.
+  string16 SavePageToProperDirectory(const FilePath& website_save_dir,
+                                      const FilePath& download_save_dir,
+                                      SavePackage::SavePackageType save_type);
+
   // Returns the SavePackage which manages the page saving job. May be NULL.
   SavePackage* save_package() const { return save_package_.get(); }