Teach mojo_shell how to load http URLs

mojo/shell/shell.cc

 // Copyright 2013 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 "base/at_exit.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "mojo/shell/app_container.h"
+#include "mojo/shell/storage.h"
 #include "mojo/shell/switches.h"
+#include "mojo/shell/task_runners.h"
 #include "mojo/system/core_impl.h"
 
 int main(int argc, char** argv) {
   base::AtExitManager at_exit;
   CommandLine::Init(argc, argv);
 
   mojo::system::CoreImpl::Init();
 
   base::MessageLoop message_loop(base::MessageLoop::TYPE_UI);
 
+  // TODO(abarth): Group these objects into a "context" object.
+  mojo::shell::TaskRunners task_runners(message_loop.message_loop_proxy());
+  mojo::shell::Storage storage;
+
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
   if (!command_line.HasSwitch(switches::kApp)) {
     LOG(ERROR) << "No app path specified.";
     return 0;
   }
 
   scoped_ptr<mojo::shell::AppContainer> container(
       new mojo::shell::AppContainer);
   container->LaunchApp(command_line.GetSwitchValuePath(switches::kApp));
   message_loop.Run();
   return 0;
 }