Allow dbus clients to silence logging when a service is unavailable.

dbus/bus_unittest.cc

Index: dbus/bus_unittest.cc
diff --git a/dbus/bus_unittest.cc b/dbus/bus_unittest.cc
index bbd2a4cf1c177aad93411fab5cef8bb2dac6f91b..ad924a92e07a743cc7ff8b7b77438523ec13de1c 100644
--- a/dbus/bus_unittest.cc
+++ b/dbus/bus_unittest.cc
@@ -50,6 +50,38 @@ TEST(BusTest, GetObjectProxy) {
   bus->ShutdownAndBlock();
 }
 
+TEST(BusTest, GetObjectProxyIgnoreUnknownService) {
+  dbus::Bus::Options options;
+  scoped_refptr<dbus::Bus> bus = new dbus::Bus(options);
+
+  dbus::ObjectProxy* object_proxy1 =
+      bus->GetObjectProxyWithOptions(
+          "org.chromium.TestService",
+          "/org/chromium/TestObject",
+          dbus::ObjectProxy::IGNORE_SERVICE_UNKNOWN_ERRORS);
+  ASSERT_TRUE(object_proxy1);
+
+  // This should return the same object.
+  dbus::ObjectProxy* object_proxy2 =
+      bus->GetObjectProxyWithOptions(
+          "org.chromium.TestService",
+          "/org/chromium/TestObject",
+          dbus::ObjectProxy::IGNORE_SERVICE_UNKNOWN_ERRORS);
+  ASSERT_TRUE(object_proxy2);
+  EXPECT_EQ(object_proxy1, object_proxy2);
+
+  // This should not.
+  dbus::ObjectProxy* object_proxy3 =
+      bus->GetObjectProxyWithOptions(
+          "org.chromium.TestService",
+          "/org/chromium/DifferentTestObject",
+          dbus::ObjectProxy::IGNORE_SERVICE_UNKNOWN_ERRORS);
+  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);