Add ApplicationImplBase::Bind().

mojo/public/cpp/application/application_impl_base.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 MOJO_PUBLIC_CPP_APPLICATION_APPLICATION_IMPL_BASE_H_
 #define MOJO_PUBLIC_CPP_APPLICATION_APPLICATION_IMPL_BASE_H_
 
 #include <memory>
 #include <string>
 #include <vector>
@@ skipping 13 matching lines @@
 // clients to services provided by an application).
 //
 // To use this class, subclass it and implement/override the required methods
 // (see below).
 //
 // TODO(vtl): ApplicationRunners should take this instead of an
 // ApplicationDelegate. Write more here when that's true (it's pretty hard to
 // use this class in the current setup).
 class ApplicationImplBase : public Application {
  public:
-  explicit ApplicationImplBase(
-      InterfaceRequest<Application> application_request);
+  ApplicationImplBase();
   ~ApplicationImplBase() override;
 
+  // Binds the given |Application| request to this object. This must be done
+  // with the message (run) loop available/running, and this will cause this
+  // object to start serving requests (via that message loop).
+  void Bind(InterfaceRequest<Application> application_request);
+
   // Quits the main run loop for this application.
   // TODO(vtl): This is implemented in application_runner.cc (for example). Its
   // presence here is pretty dubious.
   static void Terminate();
 
   // This will be valid after |Initialize()| has been received and remain valid
   // until this object is destroyed.
   Shell* shell() const { return shell_.get(); }
 
   // Returns any initial configuration arguments, passed by the shell.
@@ skipping 41 matching lines @@
   std::string url_;
 
   std::vector<std::unique_ptr<ServiceProviderImpl>> service_provider_impls_;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(ApplicationImplBase);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_APPLICATION_APPLICATION_IMPL_BASE_H_