LOG(INFO) << "[Browser process] "

<< "X error received: "

<< "type " << event->type << ", "

<< "serial " << event->serial << ", "

<< "error_code " << static_cast<int>(event->error_code) << ", "

<< "request_code " << static_cast<int>(event->request_code) << ", "

<< "minor_code " << static_cast<int>(event->minor_code);

return 0;

// Copied from upstream cefclient.

// Install xlib error handlers so that the application won't be terminated

// on non-fatal errors. Must be done after initializing GTK.

LOG(INFO) << "[Browser process] Install X11 error handlers";

XSetErrorHandler(XErrorHandlerImpl);

XSetIOErrorHandler(XIOErrorHandlerImpl);

int x, int y, int width, int height) {

::Window xwindow = browser->GetHost()->GetWindowHandle();

::Display* xdisplay = cef_get_xdisplay();

// cefpython forces ozone-platform=x11 by default (window_utils_linux.pyx),

// so cef_get_xdisplay() is normally valid. It is NULL only if the app

// overrides that to the Wayland Ozone backend - without this guard

// XConfigureWindow(NULL, ...) segfaults there (verified). xwindow is 0 for

// windowless (OSR) browsers. These are X11-only helpers, so no-op in both.

if (!xdisplay || !xwindow) return;

XWindowChanges changes = {0};

changes.x = x;

changes.y = y;

changes.width = static_cast<int>(width);

changes.height = static_cast<int>(height);

XConfigureWindow(xdisplay, xwindow,

CWX | CWY | CWHeight | CWWidth, &changes);

XFlush(xdisplay);

::Window xwindow = browser->GetHost()->GetWindowHandle();

::Display* xdisplay = cef_get_xdisplay();

// NULL xdisplay (Ozone Wayland) / 0 xwindow (OSR); see SetX11WindowBounds.

if (!xdisplay || !xwindow) return;

XStoreName(xdisplay, xwindow, title);