Hook up TABLET_MODE switch to maximize_mode_controller

chromeos/dbus/power_manager_client.cc

Index: chromeos/dbus/power_manager_client.cc
diff --git a/chromeos/dbus/power_manager_client.cc b/chromeos/dbus/power_manager_client.cc
index 0bdfcbf4feaddbcf74670e6c637ddf7a6a7fbbf0..3c1b484f485496dc086e8192dbcdc06f38938355 100644
--- a/chromeos/dbus/power_manager_client.cc
+++ b/chromeos/dbus/power_manager_client.cc
@@ -633,6 +633,14 @@ class PowerManagerClientImpl : public PowerManagerClient {
                           LidEventReceived(open, timestamp));
         break;
       }
+      case power_manager::InputEvent_Type_TABLET_MODE_ON:
+      case power_manager::InputEvent_Type_TABLET_MODE_OFF: {
+        bool on =
+            (proto.type() == power_manager::InputEvent_Type_TABLET_MODE_ON);
+        FOR_EACH_OBSERVER(PowerManagerClient::Observer, observers_,
+                          TabletModeEventReceived(on, timestamp));
+        break;
+      }
     }
   }