Remove some known_crashes.txt entries that are no longer needed.

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
 
-# 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
 
 # 73575
 PREFIX: webkit::webnode::document___autofill::formmanager::resetframe___renderview::willclose___webkit::frameloaderclientimpl::dispatchwillclose___webcore::frameloader::closeolddatasources___webcore::frameloader::commitprovisionalload___webcore::documentloader::commitload___webcore::documentloader::receiveddata___webcore::mainresourceloader::adddata___webcore::resourceloader::didreceivedata___webcore::mainresourceloader::didreceivedata___webcore::resourceloader::didreceivedata___webcore::resourcehandleinternal::didreceivedata___webkit_glue::weburlloaderimpl::context::onreceiveddata___resourcedispatcher::onreceiveddata___ipc::messagewithtuple<tuple3<int,void *,int> >::dispatch<resourcedispatcher,resourcedispatcher,int,void *,int>___resourcedispatcher::dispatchmessagew___resourcedispatcher::onmessagereceived___childthread::onmessagereceived___runnablemethod<spellcheckhost,void (__thiscall spellcheckhost::*)(std::basic_string<char,std::char_traits<char>,std::allocator<char> > const &),tuple1<std::basic_string<char,std::char_traits<char>,std::allocator<char> > > >::run___messageloop::runtask___messageloop::dowork___base::messagepumpdefault::run___messageloop::runinternal___messageloop::run___renderermain___`anonymous namespace'::runnamedprocesstypemain___chromemain___maindllloader::launch___wwinmain_____tmaincrtstartup
 
 # 74607
 PREFIX: webcore::renderstyle::getshadowverticalextent___webcore::inlineflowbox::addtextboxvisualoverflow___webcore::inlineflowbox::computeoverflow___webcore::renderblock::layoutinlinechildren___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___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::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___webcore::renderblock::layoutblock___webcore::rendertablecell::layout___webcore::rendertablerow::layout___webcore::rendertablesection::layout___webcore::rendertable::layout___webcore::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderblock::layoutblockchild___webcore::renderblock::layoutblockchildren___webcore::renderblock::layoutblock___webcore::renderblock::layout___webcore::renderview::layout___webcore::frameview::layout___webcore::frameview::updatelayoutandstyleifneededrecursive___renderwidget::dodeferredupdate___renderwidget::onupdaterectack___ipc::message::dispatch<renderview,renderview>___renderwidget::onmessagereceived___renderview::onmessagereceived___messagerouter::routemessage___messagerouter::onmessagereceived___childthread::onmessagereceived___runnablemethod<cancelablerequest<callbackrunner<tuple3<int,scoped_refptr<history::mostvisitedthumbnails>,bool> > >,void (__thiscall cancelablerequest<callbackrunner<tuple3<int,scoped_refptr<history::mostvisitedthumbnails>,bool> > >::*)(tuple3<int,scoped_refptr<history::mostvisitedthumbnails>,bool> const &),tuple1<tuple3<int,scoped_refptr<history::mostvisitedthumbnails>,bool> > >::run___messageloop::runtask___messageloop::dowork___base::messagepumpdefault::run___messageloop::runinternal___messageloop::run___renderermain___`anonymous namespace'::runnamedprocesstypemain___chromemain___maindllloader::launch___wwinmain_____tmaincrtstartup
 
 # 75352
@@ skipping 22 matching lines @@
 
 # 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
 
-# 83657
-PREFIX: base::internal::lockimpl::lock___extensioncontentsettingsstore::geteffectivecontentsetting___content_settings::extensionprovider::getcontentsetting
-
-# 83674
-PREFIX: webcore::cssstyleselector::loadpendingimages___webcore::cssstyleselector::styleforelement___webcore::node::styleforrenderer
-
-# 83676
-PREFIX: webcore::renderstyle::haspseudostyle___webcore::cssstyleselector::styleforelement___webcore::node::styleforrenderer
-
 # 84178
 PREFIX: `anonymous namespace'::establishchannelcallback::send___`anonymous namespace'::establishchannelcallback::runwithparams___gpuprocesshost::sendoutstandingreplies
 
 # 87593
 PREFIX: webcore::cachedresource::stoploading___webcore::cachedresourcerequest::didfail___webcore::subresourceloader::didfail___webcore::resourceloader::didfail___webcore::resourcehandleinternal::didfail___webkit_glue::weburlloaderimpl::context::oncompletedrequest___resourcedispatcher::onrequestcomplete
 
 # 88061
 PREFIX: `anonymous namespace'::invalidparameter____purecall___windowdragresponsetask::run___`anonymous namespace'::taskclosureadapter::run___messageloop::runtask
 
 # 89570
@@ skipping 12 matching lines @@
 PREFIX: webkit_glue::datasourceinitdone___base::internal::invoker3<0,base::internal::invokerstorage3<void (__cdecl*)(callbackrunner<tuple1<webkit_glue::webdatasource *> > *,base::callback<void __cdecl(enum media::pipelinestatus,media::datasource *)> const &,scoped_refptr<webkit_glue::webdatasource> const &,enum media::pipelinestatus),callbackrunner<tuple1<webkit_glue::webdatasource *> > *,base::callback<void __cdecl(enum media::pipelinestatus,media::datasource *)>,scoped_refptr<webkit_glue::webdatasource> >,void (__cdecl*)(callbackrunner<tuple1<webkit_glue::webdatasource *> > *,base::callback<void __cdecl(enum media::pipelinestatus,media::datasource *)> const &,scoped_refptr<webkit_glue::webdatasource> const &,enum media::pipelinestatus)>::doinvoke___webkit_glue::buffereddatasource::doneinitialization_locked___webkit_glue::buffereddatasource::httpinitialstartcallback
 
 # 90577
 PREFIX: messageloop::calculatedelayedruntime___messageloop::posttask___media::pipelineimpl::ondemuxerbuilt
 
 # 90579
 PREFIX: messageloop::calculatedelayedruntime___messageloop::posttask___media::ffmpegdemuxer::initialize
 
 # 90796
 REGEX: `anonymous namespace'::[^_]*____purecall___renderviewhost::onmessagereceived___browserrenderprocesshost::onchannelerror___[^:]*::taskclosureadapter::run___messageloop::runtask___messageloop::dowork___base::messagepumpforui::dorunloop___base::messagepumpwin::runwithdispatcher___messageloop::runinternal___messageloopforui::run___`anonymous namespace'::runuimessageloop___browsermain___`anonymous namespace'::runnamedprocesstypemain___chromemain___maindllloader::launch___wwinmain_____tmaincrtstartup