- Provide default implementations of the file chooser dialogs (open, open multiple, save) on all platforms (issue #761).

- Add a new CefBrowserHost::RunFileDialog method that displays the specified file chooser dialog and returns the results asynchronously (issue #761).
- Add a new CefDialogHandler::OnFileDialog callback that allows the application to provide custom UI for file chooser dialogs (issue #761).

git-svn-id: https://chromiumembedded.googlecode.com/svn/trunk@862 5089003a-bbd8-11dd-ad1f-f1f9622dbc98

tests/cefclient/client_app.cpp

@@ -336,8 +336,13 @@ bool ClientApp::OnProcessMessageReceived(
         std::make_pair(message_name.ToString(),
                        browser->GetIdentifier()));
     if (it != callback_map_.end()) {
+      // Keep a local reference to the objects. The callback may remove itself
+      // from the callback map.
+      CefRefPtr<CefV8Context> context = it->second.first;
+      CefRefPtr<CefV8Value> callback = it->second.second;
+
       // Enter the context.
-      it->second.first->Enter();
+      context->Enter();
 
       CefV8ValueList arguments;
 
@@ -351,15 +356,14 @@ bool ClientApp::OnProcessMessageReceived(
       arguments.push_back(args);
 
       // Execute the callback.
-      CefRefPtr<CefV8Value> retval =
-          it->second.second->ExecuteFunction(NULL, arguments);
+      CefRefPtr<CefV8Value> retval = callback->ExecuteFunction(NULL, arguments);
       if (retval.get()) {
         if (retval->IsBool())
           handled = retval->GetBoolValue();
       }
 
       // Exit the context.
-      it->second.first->Exit();
+      context->Exit();
     }
   }