mojo: Add InThreadApplicationLoader.

mojo/shell/in_thread_application_loader.h

 // 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.
 
-#ifndef MOJO_SHELL_STATIC_APPLICATION_LOADER_H_
-#define MOJO_SHELL_STATIC_APPLICATION_LOADER_H_
-
-#include <list>
+#ifndef MOJO_SHELL_IN_THREAD_APPLICATION_LOADER_H_
+#define MOJO_SHELL_IN_THREAD_APPLICATION_LOADER_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "mojo/shell/application_loader.h"
 
-namespace base {
-class SimpleThread;
+namespace mojo {
+class ApplicationDelegate;
+class ApplicationImpl;
 }
 
 namespace mojo {
-class ApplicationDelegate;
-}
-
-namespace mojo {
 namespace shell {
 
 // An ApplicationLoader which loads a single type of app from a given
 // ApplicationDelegate factory. A Load() request is fulfilled by creating an
-// instance of the app on a new thread. Only one instance of the app will run at
-// a time. Any Load requests received while the app is running will be dropped.
-class StaticApplicationLoader : public mojo::shell::ApplicationLoader {
+// instance of the app on an existing thread. Only one instance of the app will
+// run at a time. Any Load requests received while the app is running will be
+// dropped.
+class InThreadApplicationLoader : public mojo::shell::ApplicationLoader {
  public:
   using ApplicationFactory =
       base::Callback<scoped_ptr<mojo::ApplicationDelegate>()>;
 
   // Constructs a static loader for |factory|.
-  explicit StaticApplicationLoader(const ApplicationFactory& factory);
+  explicit InThreadApplicationLoader(const ApplicationFactory& factory);
 
   // Constructs a static loader for |factory| with a closure that will be called
   // when the loaded application quits.
-  StaticApplicationLoader(const ApplicationFactory& factory,
-                          const base::Closure& quit_callback);
+  InThreadApplicationLoader(const ApplicationFactory& factory,
+                            const base::Closure& termination_closure);
 
-  ~StaticApplicationLoader() override;
+  ~InThreadApplicationLoader() override;
 
   // mojo::shell::ApplicationLoader:
   void Load(const GURL& url,
             mojo::InterfaceRequest<mojo::Application> request) override;
 
  private:
-  void StopAppThread();
-
   // The factory used t create new instances of the application delegate.
   ApplicationFactory factory_;
 
   // If not null, this is run when the loaded application quits.
-  base::Closure quit_callback_;
+  base::Closure termination_closure_;
 
-  // Thread for the application if currently running.
-  scoped_ptr<base::SimpleThread> thread_;
+  scoped_ptr<mojo::ApplicationDelegate> application_delegate_;
+  scoped_ptr<mojo::ApplicationImpl> application_impl_;
 
-  base::WeakPtrFactory<StaticApplicationLoader> weak_factory_;
+  base::WeakPtrFactory<InThreadApplicationLoader> weak_factory_;
 
-  DISALLOW_COPY_AND_ASSIGN(StaticApplicationLoader);
+  DISALLOW_COPY_AND_ASSIGN(InThreadApplicationLoader);
 };
 
 }  // namespace shell
 }  // namespace mojo
 
-#endif  // MOJO_SHELL_STATIC_APPLICATION_LOADER_H_
+#endif  // MOJO_SHELL_IN_THREAD_APPLICATION_LOADER_H_