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

mojo/application_manager/application_loader.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "mojo/application_manager/application_loader.h"
-
-#include "base/logging.h"
-
-namespace mojo {
-
-ApplicationLoader::SimpleLoadCallbacks::SimpleLoadCallbacks(
-    ScopedMessagePipeHandle shell_handle)
-    : shell_handle_(shell_handle.Pass()) {
-}
-
-ApplicationLoader::SimpleLoadCallbacks::~SimpleLoadCallbacks() {
-}
-
-ScopedMessagePipeHandle
-ApplicationLoader::SimpleLoadCallbacks::RegisterApplication() {
-  return shell_handle_.Pass();
-}
-
-void ApplicationLoader::SimpleLoadCallbacks::LoadWithContentHandler(
-    const GURL& content_handle_url,
-    URLResponsePtr url_response) {
-  NOTREACHED();
-}
-
-}  // namespace mojo