@Override
public void initialize(ISynchronizePageConfiguration configuration) {
super.initialize(configuration);
ExpandAllModelAction expandAllAction = new ExpandAllModelAction(
GitActionContributor_ExpandAll, configuration);
expandAllAction.setImageDescriptor(EXPAND_ALL);
appendToGroup(P_TOOLBAR_MENU, NAVIGATE_GROUP, expandAllAction);
PullAction pullAction = new PullAction(
UIText.GitActionContributor_Pull, configuration);
pullAction.setImageDescriptor(PULL);