Support 8bpp screens in X11

ui/base/x/x11_util.h

Index: ui/base/x/x11_util.h
diff --git a/ui/base/x/x11_util.h b/ui/base/x/x11_util.h
index e9af790902a7c23a633e974a15be742092623dc7..cd347c63c6fe8f7ed85a8da2cb63b8b66aef483e 100644
--- a/ui/base/x/x11_util.h
+++ b/ui/base/x/x11_util.h
@@ -58,6 +58,9 @@ enum SharedMemorySupport {
 // Return the shared memory type of our X connection.
 UI_BASE_EXPORT SharedMemorySupport QuerySharedMemorySupport(XDisplay* dpy);
 
+// Return true iff the display supports Xrender
+UI_BASE_EXPORT bool QueryRenderSupport(XDisplay* dpy);
+
 // Returns an X11 Cursor, sharable across the process.
 // |cursor_shape| is an X font cursor shape, see XCreateFontCursor().
 UI_BASE_EXPORT ::Cursor GetXCursor(int cursor_shape);