GitLab

Issue:
The base::SplitStringUsingSubstr does not handle the case when the
delimiter is empty. The code goes into an infinite loop in that case
as begin_index and end_index always stay 0 and we keep on adding empty
string pieces to the result. This causes a memory overflow.

Fix:
This change adds a check for the delimiter size and returns the
original input string if the size is 0.

Bug: 1062612
Change-Id: I29c184bf18df1bcc50fdb6205a7ff5fa6920148b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2108213
Commit-Queue: Siddharth Sharma <siddhash@microsoft.com>
Reviewed-by: danakj <danakj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#751476}