bool isLoading,

bool canGoBack,

bool canGoForward)

{

REQUIRE_UI_THREAD();

LoadHandler_OnLoadingStateChange(browser, isLoading, canGoBack,

canGoForward);

CefRefPtr<CefFrame> frame,

TransitionType transition_type)

{

REQUIRE_UI_THREAD();

LoadHandler_OnLoadStart(browser, frame);

CefRefPtr<CefFrame> frame,

int httpStatusCode)

{

REQUIRE_UI_THREAD();

LoadHandler_OnLoadEnd(browser, frame, httpStatusCode);

CefRefPtr<CefFrame> frame,

cef_errorcode_t errorCode,

const CefString& errorText,

const CefString& failedUrl)

{

REQUIRE_UI_THREAD();

LoadHandler_OnLoadError(browser, frame, errorCode, errorText, failedUrl);