Minor cleanups and improvements for the D-Bus library.

dbus/end_to_end_async_unittest.cc

Index: dbus/end_to_end_async_unittest.cc
diff --git a/dbus/end_to_end_async_unittest.cc b/dbus/end_to_end_async_unittest.cc
index cf22a419ca24d2827e4d010aadca44b65a30f74f..33e785dd143995ea52e34fd668d97365d46eeb99 100644
--- a/dbus/end_to_end_async_unittest.cc
+++ b/dbus/end_to_end_async_unittest.cc
@@ -25,7 +25,7 @@ class EndToEndAsyncTest : public testing::Test {
   EndToEndAsyncTest() {
   }
 
-  void SetUp() {
+  virtual void SetUp() {
     // Make the main thread not to allow IO.
     base::ThreadRestrictions::SetIOAllowed(false);
 
@@ -65,7 +65,7 @@ class EndToEndAsyncTest : public testing::Test {
     message_loop_.Run();
   }
 
-  void TearDown() {
+  virtual void TearDown() {
     bus_->Shutdown(base::Bind(&EndToEndAsyncTest::OnShutdown,
                               base::Unretained(this)));
     // Wait until the bus is shutdown. OnShutdown() will be called in