dbus: Fix a crash in dbus_unittests that happens on Ubuntu 11.10

dbus/values_util_unittest.cc

 // Copyright (c) 2012 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/values_util.h"
 
 #include <vector>
 
 #include "base/float_util.h"
 #include "base/json/json_writer.h"
@@ skipping 21 matching lines @@
   const int64 kInt64Value = -47;
   writer.AppendInt64(kInt64Value);
   const uint64 kUint64Value = 48;
   writer.AppendUint64(kUint64Value);
   const double kDoubleValue = 4.9;
   writer.AppendDouble(kDoubleValue);
   const std::string kStringValue = "fifty";
   writer.AppendString(kStringValue);
   const std::string kEmptyStringValue;
   writer.AppendString(kEmptyStringValue);
-  const dbus::ObjectPath kObjectPathValue("ObjectPath");
+  const dbus::ObjectPath kObjectPathValue("/ObjectPath");
   writer.AppendObjectPath(kObjectPathValue);
 
   dbus::MessageReader reader(response.get());
   scoped_ptr<Value> value;
   scoped_ptr<Value> expected_value;
   // Pop a byte.
   value.reset(dbus::PopDataAsValue(&reader));
   ASSERT_TRUE(value.get() != NULL);
   expected_value.reset(Value::CreateIntegerValue(kByteValue));
   EXPECT_TRUE(value->Equals(expected_value.get()));
@@ skipping 382 matching lines @@
   value.reset(dbus::PopDataAsValue(&reader));
   ASSERT_TRUE(value.get() != NULL);
   EXPECT_TRUE(value->Equals(&kIntegerValue));
   value.reset(dbus::PopDataAsValue(&reader));
   ASSERT_TRUE(value.get() != NULL);
   EXPECT_TRUE(value->Equals(&kDoubleValue));
   value.reset(dbus::PopDataAsValue(&reader));
   ASSERT_TRUE(value.get() != NULL);
   EXPECT_TRUE(value->Equals(&kStringValue));
 }