InstallDesktopController  207 ash/desktop_background/desktop_background_controller.cc   InstallDesktopController(root_window);
InstallDesktopController  396 ash/desktop_background/desktop_background_controller.cc     InstallDesktopController(*iter);
InstallDesktopController  164 ash/desktop_background/desktop_background_controller.h   void InstallDesktopController(aura::Window* root_window);