- Mac: Add CefDownloadManagerDelegate::ChooseDownloadPath implementation (issue #634).

- Persist downloaded files after CEF exits (issue #634).
- Shutdown the DownloadManager when CEF exits.
- Don't show an error message when downloading files with cefclient.

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@682 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

libcef/browser/browser_context.cc

@@ -200,6 +200,9 @@ CefBrowserContext::CefBrowserContext() {
 }
 
 CefBrowserContext::~CefBrowserContext() {
+  if (download_manager_.get())
+    download_manager_->Shutdown();
+
   if (resource_context_.get()) {
     BrowserThread::DeleteSoon(
       BrowserThread::IO, FROM_HERE, resource_context_.release());