Recursively load mojo packages

mojo/tools/package_manager/package_manager_application.h

 // 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.
 
 #ifndef MOJO_PACKAGE_MANAGER_PACKAGE_MANAGER_APPLICATION_H_
 #define MOJO_PACKAGE_MANAGER_PACKAGE_MANAGER_APPLICATION_H_
 
 #include <map>
+#include <set>
 
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/interface_factory.h"
 #include "mojo/public/cpp/system/macros.h"
 #include "mojo/services/public/interfaces/network/network_service.mojom.h"
 #include "mojo/tools/package_manager/package_fetcher.h"
-#include "mojo/tools/package_manager/unpacker.h"
 
 namespace mojo {
 
+class Manifest;
+
 class PackageManagerApplication
     : public ApplicationDelegate,
       public PackageFetcherDelegate {
  public:
   PackageManagerApplication();
   virtual ~PackageManagerApplication();
 
  private:
   struct PendingLoad {
     PendingLoad();
     ~PendingLoad();
 
     scoped_ptr<PackageFetcher> fetcher;
-    Unpacker unpacker;
   };
   typedef std::map<GURL, PendingLoad*> PendingLoadMap;
 
+  void StartLoad(const GURL& url);
+
+  void LoadDeps(const Manifest& manifest);
+
   // Deletes the pending load entry for the given URL and possibly exits the
   // message loop if all loads are done.
   void PendingLoadComplete(const GURL& url);
 
   // ApplicationDelegate implementation.
   virtual void Initialize(ApplicationImpl* app) MOJO_OVERRIDE;
 
   // PackageFetcher.
   virtual void FetchSucceeded(const GURL& url,
                               const base::FilePath& name) override;
   virtual void FetchFailed(const GURL& url) override;
 
   mojo::NetworkServicePtr network_service_;
 
   PendingLoadMap pending_;  // Owning pointers.
+  std::set<GURL> completed_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(PackageManagerApplication);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_PACKAGE_MANAGER_PACKAGE_MANAGER_APPLICATION_H