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

content/browser/tab_contents/tab_contents.h

Index: content/browser/tab_contents/tab_contents.h
diff --git a/content/browser/tab_contents/tab_contents.h b/content/browser/tab_contents/tab_contents.h
index f7b71c5e4f2cc6cd4cd23b6e4008d12af1108e21..80490aac1e6b389526a7acadce2915fad1aa707a 100644
--- a/content/browser/tab_contents/tab_contents.h
+++ b/content/browser/tab_contents/tab_contents.h
@@ -400,6 +400,9 @@ class TabContents : public PageNavigator,
   // Save page with the main HTML file path, the directory for saving resources,
   // and the save type: HTML only or complete web page. Returns true if the
   // saving process has been initiated successfully.
+  // This method is used in automated testing to bypass prompting the user for
+  // file names. Instead, the names and paths are hard coded rather than
+  // running them through file name sanitation and extension / mime checking.
   bool SavePage(const FilePath& main_file, const FilePath& dir_path,
                 SavePackage::SavePackageType save_type);
 
@@ -522,6 +525,9 @@ class TabContents : public PageNavigator,
   FRIEND_TEST_ALL_PREFIXES(FormStructureBrowserTest, HTMLFiles);
   FRIEND_TEST_ALL_PREFIXES(NavigationControllerTest, HistoryNavigate);
   FRIEND_TEST_ALL_PREFIXES(RenderViewHostManagerTest, PageDoesBackAndReload);
+  FRIEND_TEST_ALL_PREFIXES(SavePageBrowserTest, SaveFolder1);
+  FRIEND_TEST_ALL_PREFIXES(SavePageBrowserTest, SaveFolder2);
+  FRIEND_TEST_ALL_PREFIXES(SavePageBrowserTest, SaveFolder3);
 
   // Temporary until the view/contents separation is complete.
   friend class TabContentsView;
@@ -533,6 +539,16 @@ class TabContents : public PageNavigator,
   friend class TabContentsViewGtk;
 #endif
 
+  // Used in automated testing to bypass prompting the user for file names.
+  // The difference between SavePageBasedOnDefaultPrefs() and SavePage()
+  // is whether the default folder prefs are used. In case of SavePage(),
+  // we need to give it the file path to which the file is saved.
+  // On the other hand, in case of SavePageBasedOnDefaultPrefs(),
+  // we need not to give the file path since the file path is determined
+  // based on the default folder prefs. This method returns the title
+  // of the current tab.
+  string16 SavePageBasedOnDefaultPrefs();
+
   // So InterstitialPage can access SetIsLoading.
   friend class InterstitialPage;