Leaks in CookiesTreeModel tests

tools/valgrind/memcheck/suppressions.txt

Index: tools/valgrind/memcheck/suppressions.txt
diff --git a/tools/valgrind/memcheck/suppressions.txt b/tools/valgrind/memcheck/suppressions.txt
index 35b0b9365391c09d85e85a10e5ee92ef5543a7c5..241ea2514a6877677788c0dfd39a996f55ed89ef 100644
--- a/tools/valgrind/memcheck/suppressions.txt
+++ b/tools/valgrind/memcheck/suppressions.txt
@@ -5227,3 +5227,21 @@
    obj:/lib/libselinux.so.1
    obj:/lib/libselinux.so.1
 }
+{
+   bug_91816_a
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN12_GLOBAL__N_120CookiesTreeModelTest5SetUpEv
+}
+{
+   bug_91816_b
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN12_GLOBAL__N_140CookiesTreeModelTest_OriginOrdering_Test8TestBodyEv
+}
+{
+   bug_91816_c
+   Memcheck:Leak
+   fun:_Znw*
+   fun:_ZN12_GLOBAL__N_141CookiesTreeModelTest_ContentSettings_Test8TestBodyEv
+}