[ServiceManager] Eliminate parent-child relationship between services

services/service_manager/tests/lifecycle/lifecycle_unittest.cc

 // 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 <memory>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/process/process.h"
 #include "base/run_loop.h"
 #include "mojo/public/cpp/bindings/binding.h"
 #include "services/service_manager/public/cpp/identity.h"
 #include "services/service_manager/public/cpp/service_test.h"
 #include "services/service_manager/public/interfaces/constants.mojom.h"
 #include "services/service_manager/public/interfaces/service_manager.mojom.h"
 #include "services/service_manager/tests/lifecycle/lifecycle_unittest.mojom.h"
 #include "services/service_manager/tests/util.h"
 
 namespace service_manager {
 
 namespace {
 
 const char kTestAppName[] = "lifecycle_unittest_app";
-const char kTestParentName[] = "lifecycle_unittest_parent";
 const char kTestExeName[] = "lifecycle_unittest_exe";
 const char kTestPackageName[] = "lifecycle_unittest_package";
 const char kTestPackageAppNameA[] = "lifecycle_unittest_package_app_a";
 const char kTestPackageAppNameB[] = "lifecycle_unittest_package_app_b";
 const char kTestName[] = "lifecycle_unittest";
 
 void QuitLoop(base::RunLoop* loop) {
   loop->Quit();
 }
 
@@ skipping 382 matching lines @@
   base::RunLoop loop;
   lifecycle.set_connection_error_handler(base::Bind(&QuitLoop, &loop));
   process.Terminate(9, true);
   loop.Run();
 
   WaitForInstanceDestruction();
   EXPECT_FALSE(instances()->HasInstanceForName(kTestExeName));
   EXPECT_EQ(0u, instances()->GetNewInstanceCount());
 }
 
-TEST_F(LifecycleTest, ShutdownTree) {
-  // Verifies that Instances are destroyed when their creator is.
-  std::unique_ptr<Connection> parent_connection =
-      connector()->Connect(kTestParentName);
-  test::mojom::ParentPtr parent;
-  parent_connection->GetInterface(&parent);
-
-  // This asks kTestParentName to open a connection to kTestAppName and blocks
-  // on a response from a Ping().
-  {
-    base::RunLoop loop;
-    parent->ConnectToChild(base::Bind(&QuitLoop, &loop));
-    loop.Run();
-  }
-
-  // Should now have two new instances (parent and child).
-  EXPECT_EQ(2u, instances()->GetNewInstanceCount());
-  EXPECT_TRUE(instances()->HasInstanceForName(kTestParentName));
-  EXPECT_TRUE(instances()->HasInstanceForName(kTestAppName));
-
-  parent->Quit();
-
-  // Quitting the parent should cascade-quit the child.
-  WaitForInstanceDestruction();
-  EXPECT_EQ(0u, instances()->GetNewInstanceCount());
-  EXPECT_FALSE(instances()->HasInstanceForName(kTestParentName));
-  EXPECT_FALSE(instances()->HasInstanceForName(kTestAppName));
-}
-
 }  // namespace service_manager