Revert 272983 "Change Shell / ShellClient to ServiceProvider"

trunk/src/mojo/public/cpp/application/lib/application.cc

-// 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.
-
-#include "mojo/public/cpp/application/application.h"
-
-namespace mojo {
-
-Application::Application(ScopedMessagePipeHandle service_provider_handle)
-    : internal::ServiceConnectorBase::Owner(service_provider_handle.Pass()) {
-}
-
-Application::Application(MojoHandle service_provider_handle)
-    : internal::ServiceConnectorBase::Owner(
-          mojo::MakeScopedHandle(
-              MessagePipeHandle(service_provider_handle)).Pass()) {}
-
-Application::~Application() {
-  for (ServiceConnectorList::iterator it = service_connectors_.begin();
-       it != service_connectors_.end(); ++it) {
-    delete *it;
-  }
-}
-
-void Application::AddServiceConnector(
-    internal::ServiceConnectorBase* service_connector) {
-  service_connectors_.push_back(service_connector);
-  set_service_connector_owner(service_connector, this);
-}
-
-void Application::RemoveServiceConnector(
-    internal::ServiceConnectorBase* service_connector) {
-  for (ServiceConnectorList::iterator it = service_connectors_.begin();
-       it != service_connectors_.end(); ++it) {
-    if (*it == service_connector) {
-      service_connectors_.erase(it);
-      delete service_connector;
-      break;
-    }
-  }
-  if (service_connectors_.empty())
-    service_provider_.reset();
-}
-
-void Application::ConnectToService(const mojo::String& url,
-                                   ScopedMessagePipeHandle client_handle) {
-  // TODO(davemoore): This method must be overridden by an Application subclass
-  // to dispatch to the right ServiceConnector. We need to figure out an
-  // approach to registration to make this better.
-  assert(1 == service_connectors_.size());
-  return service_connectors_.front()->ConnectToService(url.To<std::string>(),
-                                                       client_handle.Pass());
-}
-
-}  // namespace mojo