Remove suppression for bug 66741, since those crashes do not occur anymore.

chrome/test/data/reliability/known_crashes.txt

 # This file contains known patterns of crash signatures. One pattern per line.
 #
 # A crash signature is the concatenation of the top N functions, delimited by
 # '___', in chrome.dll on the crash stack. All characters are lower case.
 #
 # We use crash signature patterns as our list of known crashes. A crash
 # signature pattern is a string that can be used to identify a known crash. We
 # use the notion of patterns because crashes with the same root cause can often
 # differ somewhat in their crash stacks. A pattern is intended to be a
 # generalized, yet still identifying, form of a particular crash. Usually a
@@ skipping 105 matching lines @@
 
 # 63009
 SUBSTRING : chromemain___relaunchchromebrowserwithnewcommandlineifneeded___delayedlowertoken___delayedlowertoken___relaunchchromebrowserwithnewcommandlineifneeded___delayedlowertoken___delayedlowertoken___delayedlowertoken___delayedlowertoken
 
 # 63644
 PREFIX : resourcemessagefilter::ongotplugininfo
 
 # 63659
 PREFIX : hungwindowdetector::checkchildwindow___hungwindowdetector::childwndenumproc___hungwindowdetector::ontick___workerthreadticker::timertask::run
 
-# 66741
-# (SUBSTRING rather than PREFIX to catch known variants of this issue)
-SUBSTRING : url_canon::canonicalizeipaddress___url_canon::`anonymous namespace'::dohost<wchar_t,wchar_t>___url_canon::canonicalizehost___url_canon::`anonymous namespace'::docanonicalizestandardurl<wchar_t,wchar_t>___url_canon::canonicalizestandardurl___url_util::`anonymous namespace'::docanonicalize<wchar_t>___url_util::`anonymous namespace'::doresolverelative<wchar_t>
-
 # 66795
 PREFIX : webkit_glue::resourcefetcher::didfail___webkit_glue::weburlloaderimpl::context::oncompletedrequest___resourcedispatcher::onrequestcomplete___ipc::messagewithtuple<tuple4<int,urlrequeststatus,std::basic_string<char,std::char_traits<char>,std::allocator<char> >,base::time> >::dispatch<resourcedispatcher,void (__thiscall resourcedispatcher::*)(int,urlrequeststatus const &,std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &,base::time const &)>___resourcedispatcher::dispatchmessagew___resourcedispatcher::onmessagereceived___childthread::onmessagereceived___runnablemethod<selectfiledialogimpl,void (__thiscall selectfiledialogimpl::*)(selectfiledialogimpl::executeselectparams const &),tuple1<selectfiledialogimpl::executeselectparams> >::run___messageloop::runtask___messageloop::dowork___base::messagepumpdefault::run___messageloop::runinternal___messageloop::run___renderermain
 PREFIX : webkit_glue::resourcefetcher::didfail___webkit_glue::weburlloaderimpl::context::oncompletedrequest___resourcedispatcher::onrequestcomplete___ipc::messagewithtuple<tuple4<int,urlrequeststatus,std::basic_string<char,std::char_traits<char>,std::allocator<char> >,base::time> >::dispatch<resourcedispatcher,resourcedispatcher,void (__thiscall resourcedispatcher::*)(int,urlrequeststatus const &,std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &,base::time const &)>___resourcedispatcher::dispatchmessagew___resourcedispatcher::onmessagereceived___childthread::onmessagereceived___runnablemethod<profilewriter,void (__thiscall profilewriter::*)(gurl const &),tuple1<gurl> >::run___messageloop::runtask___messageloop::dowork___base::messagepumpdefault::run___messageloop::runinternal___messageloop::run___renderermain
 
 # 72796
 PREFIX : webcore::timerbase::timerbase___webcore::suspendabletimer::suspendabletimer___webcore::domtimer::domtimer___webcore::domtimer::install___webcore::windowsettimeoutimpl___webcore::v8domwindow::settimeoutcallback___v8::internal::handleapicallhelper<0>___v8::internal::builtin_handleapicall___v8::internal::invoke___v8::internal::execution::call___v8::function::call___webcore::v8proxy::callfunction___webcore::scheduledaction::execute___webcore::scheduledaction::execute___webcore::domtimer::fired___webcore::threadtimers::sharedtimerfiredinternal___messageloop::runtask___messageloop::dowork___base::messagepumpdefault::run___messageloop::runinternal___messageloop::run___renderermain___`anonymous namespace'::runnamedprocesstypemain___chromemain___maindllloader::launch___wwinmain_____tmaincrtstartup
 
 # 72832
 PREFIX : webcore::renderblock::marginbeforeforchild___webcore::renderblock::addoverflowfromfloats___webcore::renderblock::computeoverflow___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderblock::layoutpositionedobjects___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::frameview::layout___webcore::document::updatelayout___webcore::document::updatelayoutignorependingstylesheets___webcore::element::offsetwidth___webcore::elementinternal::offsetwidthattrgetter
 
@@ skipping 28 matching lines @@
 PREFIX: webcore::renderlineboxlist::deletelineboxes___webcore::renderblock::layoutinlinechildren___webcore::renderblock::layoutblock
 
 # 76955
 PREFIX: webcore::renderobject::destroy___webcore::renderobjectchildlist::destroyleftoverchildren___webcore::renderblock::destroy
 
 # 77176
 PREFIX: webcore::implicitanimation::~implicitanimation___webcore::implicitanimation::`scalar deleting destructor'___wtf::hashtable<wtf::refptr<webcore::animationbase>,wtf::refptr<webcore::animationbase>,wtf::identityextractor<wtf::refptr<webcore::animationbase> >,wtf::ptrhash<wtf::refptr<webcore::animationbase> >,wtf::hashtraits<wtf::refptr<webcore::animationbase> >,wtf::hashtraits<wtf::refptr<webcore::animationbase> > >::deallocatetable
 
 # 21054
 REGEX : ^deletetask.*::run___messageloop::runtask___messageloop::dowork