mojo leveldb: Get profile and leveldb connected to DOMStorageContext.

components/profile_service/profile_app.h

 // Copyright 2016 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 COMPONENTS_PROFILE_SERVICE_PROFILE_APP_H_
 #define COMPONENTS_PROFILE_SERVICE_PROFILE_APP_H_
 
+#include "base/memory/ref_counted.h"
 #include "components/filesystem/lock_table.h"
 #include "components/leveldb/public/interfaces/leveldb.mojom.h"
 #include "components/profile_service/public/interfaces/profile.mojom.h"
 #include "mojo/public/cpp/bindings/binding_set.h"
 #include "mojo/services/tracing/public/cpp/tracing_impl.h"
 #include "mojo/shell/public/cpp/interface_factory.h"
 #include "mojo/shell/public/cpp/shell_client.h"
 
-namespace filesystem {
-class LockTable;
-}
-
 namespace profile {
 
-scoped_ptr<mojo::ShellClient> CreateProfileApp();
+scoped_ptr<mojo::ShellClient> CreateProfileApp(
+    scoped_refptr<base::SingleThreadTaskRunner> profile_service_runner,
+    scoped_refptr<base::SingleThreadTaskRunner> leveldb_service_runner);
 
 // Application which hands off per-profile services.
 //
-// This Application serves ProfileService, and serves LevelDBService since most
-// of the users of leveldb will want to write directly to the Directory
-// provided by the ProfileService; we want file handling to be done in the same
-// process to minimize IPC.
-//
-// In the future, this application will probably also offer any service that
-// most Profile using applications will need, such as preferences.
+// This Application serves ProfileService. In the future, this application will
+// probably also offer any service that most Profile using applications will
+// need, such as preferences; this class will have to be made into a
+// application which is an InterfaceProvider which internally spawns threads
+// for different sub-applications.
 class ProfileApp : public mojo::ShellClient,
                    public mojo::InterfaceFactory<ProfileService>,
                    public mojo::InterfaceFactory<leveldb::LevelDBService> {
  public:
-  ProfileApp();
+  ProfileApp(
+      scoped_refptr<base::SingleThreadTaskRunner> profile_service_runner,
+      scoped_refptr<base::SingleThreadTaskRunner> leveldb_service_runner);
   ~ProfileApp() override;
 
-  // Currently, ProfileApp is run from within the chrome process. This means it
-  // that the ApplicationLoader is registered during MojoShellContext startup,
-  // even though the application itself is not started. As soon as a
-  // BrowserContext is created, the BrowserContext will choose a |user_id| for
-  // itself and call us to register the mapping from |user_id| to
-  // |profile_data_dir|.
-  //
-  // This data is then accessed when we get our Initialize() call.
-  //
-  // TODO(erg): This is a temporary hack until we redo how we initialize mojo
-  // applications inside of chrome in general; this system won't work once
-  // ProfileApp gets put in its own sandboxed process.
-  static void AssociateMojoUserIDWithProfileDir(
-      const std::string& user_id,
-      const base::FilePath& profile_data_dir);
-
  private:
   // |ShellClient| override:
   void Initialize(mojo::Connector* connector,
                   const mojo::Identity& identity,
                   uint32_t id) override;
   bool AcceptConnection(mojo::Connection* connection) override;
 
   // |InterfaceFactory<ProfileService>| implementation:
   void Create(mojo::Connection* connection,
               ProfileServiceRequest request) override;
 
   // |InterfaceFactory<LevelDBService>| implementation:
   void Create(mojo::Connection* connection,
               leveldb::LevelDBServiceRequest request) override;
 
+  void OnLevelDBServiceRequest(mojo::Connection* connection,
+                               leveldb::LevelDBServiceRequest request);
+  void OnLevelDBServiceError();
+
+  scoped_refptr<base::SingleThreadTaskRunner> profile_service_runner_;
+  scoped_refptr<base::SingleThreadTaskRunner> leveldb_service_runner_;
+
   mojo::TracingImpl tracing_;
 
-  scoped_ptr<ProfileService> profile_service_;
-  mojo::BindingSet<ProfileService> profile_bindings_;
+  // We create these two objects so we can delete them on the correct task
+  // runners.
+  class ProfileServiceObjects;
+  scoped_ptr<ProfileServiceObjects> profile_objects_;
 
-  scoped_ptr<leveldb::LevelDBService> leveldb_service_;
-  mojo::BindingSet<leveldb::LevelDBService> leveldb_bindings_;
-
-  scoped_ptr<filesystem::LockTable> lock_table_;
-
-  base::FilePath profile_data_dir_;
+  class LevelDBServiceObjects;
+  scoped_ptr<LevelDBServiceObjects> leveldb_objects_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileApp);
 };
 
 }  // namespace profile
 
 #endif  // COMPONENTS_PROFILE_SERVICE_PROFILE_APP_H_