Make ExportedObject and ObjectProxy own Bus as scoped_refptr.

dbus/bus_unittest.cc

 // Copyright (c) 2011 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 "dbus/bus.h"
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/memory/ref_counted.h"
 #include "base/threading/thread.h"
@@ skipping 28 matching lines @@
                           "/org/chromium/TestObject");
   ASSERT_TRUE(object_proxy2);
   EXPECT_EQ(object_proxy1, object_proxy2);
 
   // This should not.
   dbus::ObjectProxy* object_proxy3 =
       bus->GetObjectProxy("org.chromium.TestService",
                           "/org/chromium/DifferentTestObject");
   ASSERT_TRUE(object_proxy3);
   EXPECT_NE(object_proxy1, object_proxy3);
+
+  bus->ShutdownAndBlock();
 }
 
 TEST(BusTest, GetExportedObject) {
   dbus::Bus::Options options;
   scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
 
   dbus::ExportedObject* object_proxy1 =
       bus->GetExportedObject("org.chromium.TestService",
                              "/org/chromium/TestObject");
   ASSERT_TRUE(object_proxy1);
 
   // This should return the same object.
   dbus::ExportedObject* object_proxy2 =
       bus->GetExportedObject("org.chromium.TestService",
                              "/org/chromium/TestObject");
   ASSERT_TRUE(object_proxy2);
   EXPECT_EQ(object_proxy1, object_proxy2);
 
   // This should not.
   dbus::ExportedObject* object_proxy3 =
       bus->GetExportedObject("org.chromium.TestService",
                              "/org/chromium/DifferentTestObject");
   ASSERT_TRUE(object_proxy3);
   EXPECT_NE(object_proxy1, object_proxy3);
+
+  bus->ShutdownAndBlock();
 }
 
 TEST(BusTest, ShutdownAndBlock) {
   dbus::Bus::Options options;
   scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
   ASSERT_FALSE(bus->shutdown_completed());
 
   // Shut down synchronously.
   bus->ShutdownAndBlock();
   EXPECT_TRUE(bus->shutdown_completed());
@@ skipping 31 matching lines @@
   ASSERT_FALSE(bus->AddFilterFunction(&DummyHandler, &data1));
   // Can add the same function with different data.
   ASSERT_TRUE(bus->AddFilterFunction(&DummyHandler, &data2));
 
   ASSERT_TRUE(bus->RemoveFilterFunction(&DummyHandler, &data1));
   ASSERT_FALSE(bus->RemoveFilterFunction(&DummyHandler, &data1));
   ASSERT_TRUE(bus->RemoveFilterFunction(&DummyHandler, &data2));
 
   bus->ShutdownAndBlock();
 }