dbus: Add FakeBus

chromeos/dbus/mock_dbus_thread_manager_without_gmock.cc

Index: chromeos/dbus/mock_dbus_thread_manager_without_gmock.cc
diff --git a/chromeos/dbus/mock_dbus_thread_manager_without_gmock.cc b/chromeos/dbus/mock_dbus_thread_manager_without_gmock.cc
index 2d36b8f7ed1aca00fc4a7b6560ad5bc724a59508..784b6f41a6c482c6f1debbd7e4dfb9d9d962b9f5 100644
--- a/chromeos/dbus/mock_dbus_thread_manager_without_gmock.cc
+++ b/chromeos/dbus/mock_dbus_thread_manager_without_gmock.cc
@@ -17,6 +17,7 @@
 #include "chromeos/dbus/ibus/mock_ibus_engine_service.h"
 #include "chromeos/dbus/ibus/mock_ibus_input_context_client.h"
 #include "chromeos/dbus/ibus/mock_ibus_panel_service.h"
+#include "dbus/fake_bus.h"
 
 namespace chromeos {
 
@@ -53,8 +54,8 @@ void MockDBusThreadManagerWithoutGMock::RemoveObserver(
 void MockDBusThreadManagerWithoutGMock::InitIBusBus(
     const std::string& ibus_address,
     const base::Closure& closure) {
-  // Non-null bus address is used to ensure the connection to ibus-daemon.
-  ibus_bus_ = reinterpret_cast<dbus::Bus*>(0xdeadbeef);
+  dbus::Bus::Options options;
+  ibus_bus_ = new dbus::FakeBus(options);
 }
 
 dbus::Bus* MockDBusThreadManagerWithoutGMock::GetSystemBus() {