Add mojo package manager skeleton.

mojo/tools/package_manager/package_manager_application.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/tools/package_manager/package_manager_application.h"
+
+#include "base/files/file_util.h"
+#include "base/message_loop/message_loop.h"
+#include "base/stl_util.h"
+#include "mojo/public/cpp/application/application_impl.h"
+
+namespace mojo {
+
+PackageManagerApplication::PendingLoad::PendingLoad() {
+}
+
+PackageManagerApplication::PendingLoad::~PendingLoad() {
+}
+
+PackageManagerApplication::PackageManagerApplication() {
+}
+
+PackageManagerApplication::~PackageManagerApplication() {
+  printf("APPLICATION EXITING\n");
+  STLDeleteContainerPairSecondPointers(pending_.begin(), pending_.end());
+}
+
+void PackageManagerApplication::Initialize(ApplicationImpl* app) {
+  app->ConnectToService("mojo:mojo_network_service", &network_service_);
+
+  printf("Enter URL> ");
+  char buf[1024];
+  if (scanf("%1023s", buf) != 1) {
+    printf("No input, exiting\n");
+    base::MessageLoop::current()->Quit();
+    return;
+  }
+  GURL url(buf);
+  if (!url.is_valid()) {
+    printf("Invalid URL\n");
+    base::MessageLoop::current()->Quit();
+    return;
+  }
+
+  PendingLoad* load = new PendingLoad;
+  load->fetcher.reset(new mojo::PackageFetcher(
+      network_service_.get(), this, url));
+
+  pending_[url] = load;
+}
+
+void PackageManagerApplication::PendingLoadComplete(const GURL& url) {
+  pending_.erase(pending_.find(url));
+  if (pending_.empty())
+    base::MessageLoop::current()->Quit();
+}
+
+void PackageManagerApplication::FetchSucceeded(
+    const GURL& url,
+    const base::FilePath& name) {
+  PendingLoad* load = pending_.find(url)->second;
+
+  if (!load->unpacker.Unpack(name)) {
+    base::DeleteFile(name, false);
+    printf("Failed to unpack\n");
+    PendingLoadComplete(url);
+    return;
+  }
+  base::DeleteFile(name, false);
+
+  PendingLoadComplete(url);
+}
+
+void PackageManagerApplication::FetchFailed(const GURL& url) {
+  PendingLoadComplete(url);
+}
+
+}  // namespace mojo