Make sure that Content Handled application can be connected multiple times.

mojo/shell/dynamic_application_loader_unittest.cc

Index: mojo/shell/dynamic_application_loader_unittest.cc
diff --git a/mojo/shell/dynamic_application_loader_unittest.cc b/mojo/shell/dynamic_application_loader_unittest.cc
index 7c04e4c9e85196d1409d50fead11499655a5b201..d08c4ca0208fd94841cecbee3d3bef3146ec1c22 100644
--- a/mojo/shell/dynamic_application_loader_unittest.cc
+++ b/mojo/shell/dynamic_application_loader_unittest.cc
@@ -83,9 +83,8 @@ TEST_F(DynamicApplicationLoaderTest, DoesNotExist) {
   base::FilePath nonexistent_file(FILE_PATH_LITERAL("nonexistent.txt"));
   GURL url(FilePathToFileURL(temp_dir.path().Append(nonexistent_file)));
   MessagePipe pipe;
-  scoped_refptr<ApplicationLoader::SimpleLoadCallbacks> callbacks(
-      new ApplicationLoader::SimpleLoadCallbacks(pipe.handle0.Pass()));
-  loader_->Load(context_.application_manager(), url, callbacks);
+  loader_->Load(context_.application_manager(), url, pipe.handle0.Pass(),
+                nullptr);
   EXPECT_FALSE(state_.runner_was_created);
   EXPECT_FALSE(state_.runner_was_started);
   EXPECT_FALSE(state_.runner_was_destroyed);