fixes reading Chrome binary extension file in text mode
Strips leading and trailing whitespaces for -browser parts.

Fixes issue 5882.
flick is supposed to pass xspeed/yspeed (not xSpeed/ySpeed) on the wire.

Fixes issue 5660.
Ignores frame which can not be get by IHTMLFramesCollection2::item
during waiting for page load complete.

It prevents infinite page load at IE9 for page with frameset
without cols and rows specified.

Test case is added.

Fixes issue 3211.