[chromeos] New PowerManagerClient observer to collect power data.

chromeos/dbus/fake_dbus_thread_manager.h

Index: chromeos/dbus/fake_dbus_thread_manager.h
diff --git a/chromeos/dbus/fake_dbus_thread_manager.h b/chromeos/dbus/fake_dbus_thread_manager.h
index b6b80a2fc080032ab5f0126be920c7aa6fbf4326..a2d9e5539d42448e173438b80cb52f376ae803e3 100644
--- a/chromeos/dbus/fake_dbus_thread_manager.h
+++ b/chromeos/dbus/fake_dbus_thread_manager.h
@@ -78,6 +78,7 @@ class FakeDBusThreadManager : public DBusThreadManager {
   virtual NfcManagerClient* GetNfcManagerClient() OVERRIDE;
   virtual NfcTagClient* GetNfcTagClient() OVERRIDE;
   virtual PermissionBrokerClient* GetPermissionBrokerClient() OVERRIDE;
+  virtual PowerDataCollector* GetPowerDataCollector();
   virtual PowerManagerClient* GetPowerManagerClient() OVERRIDE;
   virtual PowerPolicyController* GetPowerPolicyController() OVERRIDE;
   virtual SessionManagerClient* GetSessionManagerClient() OVERRIDE;
@@ -201,6 +202,7 @@ class FakeDBusThreadManager : public DBusThreadManager {
   scoped_ptr<MockIBusClient> mock_ibus_client_;
 
   scoped_ptr<PowerPolicyController> power_policy_controller_;
+  scoped_ptr<PowerDataCollector> power_data_collector_;
   dbus::Bus* ibus_bus_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeDBusThreadManager);