ApplicationManager: Use callback to get notified on application shutdown.

shell/application_manager/application_manager_unittest.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 "base/at_exit.h"
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop/message_loop.h"
 #include "mojo/public/cpp/application/application_connection.h"
@@ skipping 385 matching lines @@
     GURL mapped_url = ResolveMappings(url);
     // The shell automatically map mojo URLs.
     if (mapped_url.scheme() == "mojo") {
       url::Replacements<char> replacements;
       replacements.SetScheme("file", url::Component(0, 4));
       mapped_url = mapped_url.ReplaceComponents(replacements);
     }
     return mapped_url;
   }
 
-  void OnApplicationError(const GURL& url) override {}
-
  private:
   std::map<GURL, GURL> mappings_;
 };
 
 class TestExternal : public ApplicationDelegate {
  public:
   TestExternal() : configure_incoming_connection_called_(false) {}
 
   void Initialize(ApplicationImpl* app) override {
     initialize_args_ = app->args();
@@ skipping 332 matching lines @@
   // test::test2 should go to scheme loader.
   application_manager_->ConnectToService(GURL("test:test2?foo=bar"),
                                          &test_service);
   EXPECT_EQ(1, url_loader->num_loads());
   EXPECT_EQ(1, scheme_loader->num_loads());
 }
 
 }  // namespace
 }  // namespace shell
 }  // namespace mojo