Switch to standard integer types in mojo/.

mojo/shell/test_package_manager.cc

 // Copyright 2015 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 <stdint.h>
+
 #include "mojo/shell/test_package_manager.h"
 
 namespace mojo {
 namespace shell {
 namespace test {
 
 TestPackageManager::TestPackageManager() {}
 TestPackageManager::~TestPackageManager() {}
 
 void TestPackageManager::SetApplicationManager(ApplicationManager* manager) {}
 void TestPackageManager::FetchRequest(
     URLRequestPtr request,
     const Fetcher::FetchCallback& loader_callback) {}
 uint32_t TestPackageManager::HandleWithContentHandler(
     Fetcher* fetcher,
     const Identity& source,
     const GURL& target_url,
     const CapabilityFilter& target_filter,
     InterfaceRequest<Application>* application_request) {
   return 0;
 }
 
 }  // namespace test
 }  // namespace shell
 }  // namespace mojo