suppress unaddr error at WebResourceService::StartFetch

TBR=bauerb@chromium.org, akalin@chromium.org
BUG=386741

Review URL: https://codereview.chromium.org/342943005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@278463 0039d316-1c4b-4281-b951-d872f2087c98

tools/valgrind/drmemory/suppressions.txt

@@ -617,5 +617,7 @@ name=http://crbug.com/313788
 UNADDRESSABLE ACCESS
 name=http://crbug.com/386711
 *!IntranetRedirectDetector::FinishSleep
-*!base::internal::Invoker<>::Run
-*!base::MessageLoop::RunTask
+
+UNADDRESSABLE ACCESS
+name=http://crbug.com/386741
+*!WebResourceService::StartFetch