Removes known crash that hasn't happened in the last 50 or so runs.

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 71 matching lines @@
 PREFIX : `anonymous namespace'::purecall____purecall___`anonymous namespace'::do_malloc___base::internal::threadlocalplatform::getvaluefromslot___notificationservice::currentPREFIX: `anonymous namespace'::invalidparameter____purecall___`anonymous namespace'::do_malloc___base::internal::threadlocalplatform::getvaluefromslot___notificationservice::current
 PREFIX : `anonymous namespace'::purecall____purecall___`anonymous namespace'::do_free_with_callback___notificationservice::notify___browserlist::removebrowser___browser::~browser
 PREFIX : `anonymous namespace'::invalidparameter____purecall___`anonymous namespace'::do_free_with_callback___notificationservice::notify___browserlist::removebrowser___browser::~browser
 PREFIX : `anonymous namespace'::invalidparameter____purecall___notificationservice::notify___browserlist::removebrowser___browser::~browser___browse
 PREFIX : `anonymous namespace'::invalidparameter____purecall___notificationservice::current___views::widgetwin::onwndproc___gfx::windowimpl::wndproc___renderviewhost::onmessagereceived
 
 # 57185
 PREFIX : `anonymous namespace'::purecall____purecall___lockimpl::unlock___`anonymous namespace'::rolloverprotectednow___lockimpl::lock___conditionvariable::signal___watchdog::armsometimedeltaago___`anonymous namespace'::jankobserverhelper::startprocessingtimers___`anonymous namespace'::uijankobserver::willprocesstask
 PREFIX : `anonymous namespace'::invalidparameter____purecall___lockimpl::unlock___`anonymous namespace'::rolloverprotectednow___lockimpl::lock___conditionvariable::signal___watchdog::armsometimedeltaago___`anonymous namespace'::jankobserverhelper::startprocessingtimers___`anonymous namespace'::uijankobserver::willprocesstask
 
-# 57188
-PREFIX : `anonymous namespace'::invalidparameter____purecall___basetab::advanceloadinganimation___notificationservice::notify___`anonymous namespace'::painttimer::timeout
-
 # 57368
 PREFIX : appmodaldialog::closemodaldialog___javascriptappmodaldialog::observe___notificationservice::notify___tabcontents::~tabcontents
 
 # 57157
 PREFIX : browserview::gettoolbarview___webcore::videolayerchromium::~videolayerchromium
 
 # 58097
 PREFIX : `anonymous namespace'::purecall____purecall___notificationservice::notify___browserlist::removebrowser___browser::~browser___browser::`scalar deleting destructor'___browserview::~browserview
 
 # 59329
@@ skipping 36 matching lines @@
 PREFIX : webcore::cssstyleselector::applyproperty___webcore::cssstyleselector::applydeclarations
 PREFIX : webcore::cssstylesheet::isloading___webcore::cssstylesheet::checkloaded___webcore::styleelement::createsheet___webcore::styleelement::process___webcore::svgstyleelement::childrenchanged
 PREFIX : webcore::renderlayer::stackingcontext___webcore::renderlayer::addchild___webcore::addlayers___webcore::renderobject::addlayers___webcore::renderobjectchildlist::appendchildnode
 PREFIX : webcore::renderstyle::create___webcore::cssstyleselector::styleforelement
 
 # 70031
 SUBSTRING : webcore::shadowdata::`scalar deleting destructor___webcore::shadowdata::`scalar deleting destructor'___webcore::shadowdata::`scalar deleting destructor'___webcore::shadowdata::`scalar deleting destructor'
 
 # 70631
 SUBSTRING : v8::internal::invoke___v8::internal::execution::call