Implement a trivial Mojo EchoService that can be connected to over DBus

mojo/shell/context.h

 // 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.
 
 #ifndef MOJO_SHELL_CONTEXT_H_
 #define MOJO_SHELL_CONTEXT_H_
 
 #include "mojo/service_manager/service_manager.h"
 #include "mojo/shell/keep_alive.h"
 #include "mojo/shell/loader.h"
 #include "mojo/shell/storage.h"
 #include "mojo/shell/task_runners.h"
 
 #if defined(OS_ANDROID)
 #include "base/android/scoped_java_ref.h"
 #endif  // defined(OS_ANDROID)
 
 namespace mojo {
 
 class Spy;
 
 namespace shell {
 
+class DBusServiceLoader;
 class DynamicServiceLoader;
 
 // The "global" context for the shell's main process.
 class Context {
  public:
   Context();
   ~Context();
 
   TaskRunners* task_runners() { return &task_runners_; }
   Storage* storage() { return &storage_; }
   Loader* loader() { return &loader_; }
   ServiceManager* service_manager() { return &service_manager_; }
   KeepAliveCounter* keep_alive_counter() { return &keep_alive_counter_; }
 
 #if defined(OS_ANDROID)
   jobject activity() const { return activity_.obj(); }
   void set_activity(jobject activity) { activity_.Reset(NULL, activity); }
 #endif  // defined(OS_ANDROID)
 
  private:
   class NativeViewportServiceLoader;
   TaskRunners task_runners_;
   Storage storage_;
   Loader loader_;
   ServiceManager service_manager_;
+  scoped_ptr<DBusServiceLoader> dbus_service_loader_;

[viettrungluu, 2014/04/18 19:40:15]

FYI: I believe Dave is working on making the ServiceManager just own the loaders
its given, so soon this won't be necessary.

(Which is good, since it'll make it easier/nicer to make this conditional on
being on Linux.)

   scoped_ptr<DynamicServiceLoader> dynamic_service_loader_;
   scoped_ptr<Spy> spy_;
   scoped_ptr<NativeViewportServiceLoader> native_viewport_service_loader_;
 #if defined(OS_ANDROID)
   base::android::ScopedJavaGlobalRef<jobject> activity_;
 #endif  // defined(OS_ANDROID)
 
   KeepAliveCounter keep_alive_counter_;
 
   DISALLOW_COPY_AND_ASSIGN(Context);
 };
 
 }  // namespace shell
 }  // namespace mojo
 
 #endif  // MOJO_SHELL_CONTEXT_H_