Remove some known_crashes.txt entries that are no longer needed.
- 72796, 83674 and 83676 have not occurred recently (as far as back as we have builder logs)
- 83657 has been fixed

BUG=72796,83657,83676,83674
TEST=no
R=mattm@chromium.org

Review URL: http://codereview.chromium.org/7523034

git-svn-id: svn://svn.chromium.org/chrome/trunk/src/chrome/test/data/reliability@94805 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/known_crashes.txt b/known_crashes.txt
index ef35c86..e8cd427 100644
--- a/known_crashes.txt
+++ b/known_crashes.txt
@@ -123,9 +123,6 @@
 # 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
 
@@ -168,15 +165,6 @@
 # 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