Crash in canceled requests with GURL access

[kjozwiak]

Description

When I woke up this morning and woke my MBP, quitting brave produced an instant crash.

Steps to Reproduce

1. install & launch 0.55.16 Chromium: 70.0.3538.54 (release)
2. once installed, open a few tabs, windows etc..
3. hibernate the machine (in my case, I closed the MBP lid and went to sleep)
4. wake the machine, and attempt quitting Brave

Note: I'm not 100% sure if these STR will work but this is what I did last night before reproducing the crash this morning when I attempted to quite Brave.

Actual result:

After waking up my machine, quitting Brave produced the following crash:

• symbolizedCrash.txt

Expected result:

Brave shouldn't crash when quitting the application

Reproduces how often:

I'm not 100% sure as I only received the one crash and mentioned it in Slack. @bbondy took a look and found the issue.

Brave version (brave://version info)

Brave	0.55.16 Chromium: 70.0.3538.54 (Official Build) (64-bit)
Revision	4f8e578b6680574714e9ed3bb9f02922b4dde40d-refs/branch-heads/3538@{#937}
OS	Mac OS X

Reproducible on current release:

• Does it reproduce on brave-browser dev/beta builds?
• Does it reproduce on browser-laptop?

Website problems only:

• Does the issue resolve itself when disabling Brave Shields?
• Is the issue reproducible on the latest version of Chrome?

Additional Information