Comment 2 for bug 584959

indeed, regression in gtk. most probably the same causing bug 584287.

$ chromium-browser --user-data-dir=/tmp/xxx --sync http://googlecode.blogspot.com/

Gdk-ERROR **: The program 'exe' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadMatch (invalid parameter attributes)'.
  (Details: serial 428 error_code 8 request_code 142 minor_code 3)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
aborting...
[10483:10483:87860331286:ERROR:chrome/browser/tab_contents/tab_contents.cc(1946)] Not implemented reached in virtual void TabContents::OnCrashedPlugin(const FilePath&) convert plugin path to plugin name
[10483:10483:87860344652:ERROR:chrome/browser/tab_contents/tab_contents.cc(1946)] Not implemented reached in virtual void TabContents::OnCrashedPlugin(const FilePath&) convert plugin path to plugin name
[10483:10483:87860353367:ERROR:chrome/browser/tab_contents/tab_contents.cc(1946)] Not implemented reached in virtual void TabContents::OnCrashedPlugin(const FilePath&) convert plugin path to plugin name