Plug some of the leaks in dbus_unittests.

dbus/mock_unittest.cc

Index: dbus/mock_unittest.cc
diff --git a/dbus/mock_unittest.cc b/dbus/mock_unittest.cc
index bede2740d407d536858074f5088ed74e68d33247..f24783f54a1aa84f375f9272f7808624b5176b81 100644
--- a/dbus/mock_unittest.cc
+++ b/dbus/mock_unittest.cc
@@ -7,6 +7,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
+#include "base/run_loop.h"
 #include "dbus/message.h"
 #include "dbus/mock_bus.h"
 #include "dbus/mock_exported_object.h"
@@ -174,7 +175,7 @@ TEST_F(MockTest, CallMethod) {
                     base::Bind(&MockTest::OnResponse,
                                base::Unretained(this)));
   // Run the message loop to let OnResponse be called.
-  message_loop_.Run();
+  base::RunLoop().Run();
 
   EXPECT_EQ(kHello, response_string_);
 }