Add alternate prefix patterns for known crashes

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 57 matching lines @@
 PREFIX : tabcontentsview::activate___renderwidgethost::onmessagereceived___renderviewhost::onmessagereceived___browserrenderprocesshost::onmessagereceived
 
 # 54115
 PREFIX : ipc::sendtask::run___messageloop::runtask___messageloop::dowork___base::messagepumpforio::dorunloop___base::messagepumpwin::run___messageloop::runinternal___messageloop::run___base::thread::run___base::thread::threadmain___`anonymous namespace'::threadfunc
 
 # 56747
 PREFIX : testingautomationprovider::getactivewindow
 
 # 56749
 PREFIX : executebrowsercommandobserver::observe___notificationservice::notify
+PREFIX : `anonymous namespace'::purecall____purecall___executebrowsercommandobserver::observe___notificationservice::notify
+PREFIX : `anonymous namespace'::invalidparameter____purecall___executebrowsercommandobserver::observe___notificationservice::notify
 
 # 56750
 PREFIX : browserclosednotificationobserver::observe___notificationservice::notify
+PREFIX : `anonymous namespace'::purecall____purecall___browserclosednotificationobserver::observe___notificationservice::notify
+PREFIX : `anonymous namespace'::invalidparameter____purecall___browserclosednotificationobserver::observe___notificationservice::notify
 
 # 57041
+PREFIX: `anonymous namespace'::purecall____purecall___`anonymous namespace'::do_malloc___base::threadlocalplatform::getvaluefromslot___notificationservice::current
 PREFIX: `anonymous namespace'::invalidparameter____purecall___`anonymous namespace'::do_malloc___base::threadlocalplatform::getvaluefromslot___notificationservice::current
 PREFIX: `anonymous namespace'::invalidparameter____purecall___notificationservice::notify
 PREFIX: `anonymous namespace'::invalidparameter____purecall___`anonymous namespace'::do_free_with_callback___notificationservice::notify___browserlist::removebrowser___browser::~browser
 
 # 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