Suppress reliability crash for bug 76955.

TBR=pfeldman

git-svn-id: svn://svn.chromium.org/chrome/trunk/src/chrome/test/data/reliability@78915 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/known_crashes.txt b/known_crashes.txt
index c8136a7..ca5d745 100644
--- a/known_crashes.txt
+++ b/known_crashes.txt
@@ -172,3 +172,6 @@
 
 # 76031
 PREFIX: webcore::renderlineboxlist::deletelineboxes___webcore::renderblock::layoutinlinechildren___webcore::renderblock::layoutblock
+
+# 76955
+PREFIX: webcore::renderobject::destroy___webcore::renderobjectchildlist::destroyleftoverchildren___webcore::renderblock::destroy