[MemSheriff] Add a DrMemory suppression.

BUG=413215
TBR=zhaoqin@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/564803002

Cr-Commit-Position: refs/heads/master@{#294378}

tools/valgrind/drmemory/suppressions.txt

@@ -652,3 +652,8 @@ content.dll!content::WebThreadBase::TaskObserverAdapter::WillProcessTask
 base.dll!base::MessageLoop::RunTask
 base.dll!base::Thread::StopSoon
 base.dll!base::MessageLoop::DeferOrRunPendingTask
+
+INVALID HEAP ARGUMENT
+name=http://crbug.com/413215
+*!replace_operator_delete
+v8.dll!*