Factor stuff from ApplicationImpl out to a new class, ApplicationImplBase.

mojo/public/cpp/application/lib/application_impl_base.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// 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.
 
-#include "mojo/public/cpp/application/application_impl.h"
+#include "mojo/public/cpp/application/application_impl_base.h"
 
+#include <algorithm>
 #include <utility>
 
-#include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/connection_context.h"
 #include "mojo/public/cpp/application/service_provider_impl.h"
-#include "mojo/public/cpp/bindings/interface_ptr.h"
-#include "mojo/public/cpp/bindings/interface_request.h"
 #include "mojo/public/cpp/environment/logging.h"
 
 namespace mojo {
 
-ApplicationImpl::ApplicationImpl(ApplicationDelegate* delegate,
-                                 InterfaceRequest<Application> request)
-    : delegate_(delegate), application_binding_(this, request.Pass()) {}
+ApplicationImplBase::ApplicationImplBase(
+    InterfaceRequest<Application> application_request)
+    : application_binding_(this, application_request.Pass()) {}
 
-ApplicationImpl::~ApplicationImpl() {}
+ApplicationImplBase::~ApplicationImplBase() {}
 
-bool ApplicationImpl::HasArg(const std::string& arg) const {
+bool ApplicationImplBase::HasArg(const std::string& arg) const {
   return std::find(args_.begin(), args_.end(), arg) != args_.end();
 }
 
-void ApplicationImpl::Initialize(InterfaceHandle<Shell> shell,
-                                 Array<String> args,
-                                 const mojo::String& url) {
+void ApplicationImplBase::Initialize(InterfaceHandle<Shell> shell,
+                                     Array<String> args,
+                                     const mojo::String& url) {
   shell_ = ShellPtr::Create(std::move(shell));
   shell_.set_connection_error_handler([this]() {
-    delegate_->Quit();
+    OnQuit();
     service_provider_impls_.clear();
     Terminate();
   });
   url_ = url;
   args_ = args.To<std::vector<std::string>>();
-  delegate_->Initialize(this);
+  OnInitialize();
 }
 
-void ApplicationImpl::AcceptConnection(
+void ApplicationImplBase::AcceptConnection(
     const String& requestor_url,
     InterfaceRequest<ServiceProvider> services,
     InterfaceHandle<ServiceProvider> exposed_services,
     const String& url) {
   // Note: The shell no longer actually connects |exposed_services|, so a) we
   // never actually get valid |exposed_services| here, b) it should be OK to
   // drop it on the floor.
   MOJO_LOG_IF(ERROR, exposed_services)
       << "DEPRECATED: exposed_services is going away";
   std::unique_ptr<ServiceProviderImpl> service_provider_impl(
       new ServiceProviderImpl(
           ConnectionContext(ConnectionContext::Type::INCOMING, requestor_url,
                             url),
           services.Pass()));
-  if (!delegate_->ConfigureIncomingConnection(service_provider_impl.get()))
+  if (!OnAcceptConnection(service_provider_impl.get()))
     return;
   service_provider_impls_.push_back(std::move(service_provider_impl));
 }
 
-void ApplicationImpl::RequestQuit() {
-  delegate_->Quit();
+void ApplicationImplBase::RequestQuit() {
+  OnQuit();
   Terminate();
 }
 
 }  // namespace mojo