Making some crash signature more generic.

Review URL: http://codereview.chromium.org/155886

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@21225 0039d316-1c4b-4281-b951-d872f2087c98

chrome/test/data/reliability/known_crashes.txt

@@ -72,10 +72,10 @@ SUBSTRING : webcore::frameloader::didreceiveresponse___webcore::resourceloader::
 PREFIX : webcore::renderobject::localtoabsolute___webcore::layoutstate::layoutstate___webcore::renderview::pushlayoutstate___webcore::frameview::layout
 
 # 17366
-wtf::refptr<webcore::node>::operator=___webcore::frameview::scrolltoanchor___webcore::frameview::maintainscrollpositionatanchor___webcore::frameloader::gotoanchor
+SUBSTRING : operator=___webcore::frameview::scrolltoanchor___webcore::frameview::maintainscrollpositionatanchor___webcore::frameloader::gotoanchor
 
 # 17367
-wtf::hashtable<webcore::string,webcore::string,wtf::identityextractor<webcore::string>,webcore::stringhash,wtf::hashtraits<webcore::string>,wtf::hashtraits<webcore::string> >::add<webcore::string,webcore::string,wtf::identityhashtranslator<webcore::string,webcore::string,webcore::stringhash> >___webcore::frameloader::dispatchwillsendrequest___webcore::frameloader::willsendrequest___webcore::resourceloader::willsendrequest___webcore::mainresourceloader::willsendrequest___webcore::mainresourceloader::loadnow
+PREFIX : wtf::hashtable<webcore::string,webcore::string,wtf::identityextractor<webcore::string>,webcore::stringhash,wtf::hashtraits<webcore::string>,wtf::hashtraits<webcore::string> >::add<webcore::string,webcore::string,wtf::identityhashtranslator<webcore::string,webcore::string,webcore::stringhash> >___webcore::frameloader::dispatchwillsendrequest___webcore::frameloader::willsendrequest___webcore::resourceloader::willsendrequest___webcore::mainresourceloader::willsendrequest___webcore::mainresourceloader::loadnow
 
 # 8033
 SUBSTRING : windowdragresponsetask::run___messageloop::runtask___messageloop::dowork