Removing the stack for 19393 as this seems to be fixed.

Bug=19393
TBR=huanr

Review URL: http://codereview.chromium.org/201064

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@25753 0039d316-1c4b-4281-b951-d872f2087c98

chrome/test/data/reliability/known_crashes.txt

@@ -75,9 +75,6 @@ SUBSTRING : webcore::renderlayer::paintlayer___webcore::renderlayer::paintlayer_
 # 18799
 PREFIX : webplugindelegatestub::onmessagereceived___webplugindelegateimpl::nativewndproc___base::messagepumpforui::dorunloop___base::messagepumpwin::run___messageloop::runinternal___messageloop::runhandler___messageloop::run___pluginmain___chromemain___wwinmain_____tmaincrtstartup
 
-# 19393
-PREFIX : npapi::pluginstreamurl::didreceivedata___webplugindelegatestub::ondidreceivedata
-
 # 19428
 PREFIX : webcore::rendertextcontrol::calcprefwidths___webcore::renderbox::minprefwidth___webcore::renderblock::calcinlineprefwidths