Tablet-like power button behavior on Convertible/Tablet ChromeOS devices

chromeos/dbus/fake_power_manager_client.h

Index: chromeos/dbus/fake_power_manager_client.h
diff --git a/chromeos/dbus/fake_power_manager_client.h b/chromeos/dbus/fake_power_manager_client.h
index 14eca3c39f24a4cfdc98b04f93cec35884435fad..4e569b608d3891ad10eb0a5686e7cd9146743b13 100644
--- a/chromeos/dbus/fake_power_manager_client.h
+++ b/chromeos/dbus/fake_power_manager_client.h
@@ -79,6 +79,10 @@ class CHROMEOS_EXPORT FakePowerManagerClient : public PowerManagerClient {
   void SendSuspendDone();
   void SendDarkSuspendImminent();
 
+  // Emulates the power manager announcing that the system is changing
+  // brightness to |level|.
+  void SendBrightnessChanged(int level, bool user_initiated);
+
   // Notifies observers that the power button has been pressed or released.
   void SendPowerButtonEvent(bool down, const base::TimeTicks& timestamp);