Crash when entering no DoH URL

[csagan5]

Bromite version

Version: 78.0.3904.119
Arch: x86
Android version: 9.0
Device model: Nexus 5X

Is this bug about the SystemWebView?

No

Is the bug reproducible with latest version?

Yes

Can the bug be reproduced with corresponding Chromium version?

No.

Is the bug a crash?

Yes.

Describe the bug

Crash when saving an empty URL for DoH.

Steps to reproduce the bug

Steps to reproduce the behavior:

1. Go to the Secure DNS (DoH) configuration page
2. Edit the URL and delete everything from the text box
3. Press save
4. Any navigation request will crash the browser with:

12-05 20:41:36.098  5610  5610 F DEBUG   : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
12-05 20:41:36.098  5610  5610 F DEBUG   : Build fingerprint: 'google/sdk_gphone_x86/generic_x86:10/QPP6.190730.005.B1/5775370:userdebug/dev-keys'
12-05 20:41:36.098  5610  5610 F DEBUG   : Revision: '0'
12-05 20:41:36.098  5610  5610 F DEBUG   : ABI: 'x86'
12-05 20:41:36.098  5610  5610 F DEBUG   : Timestamp: 2019-12-05 20:41:36+0100
12-05 20:41:36.098  5610  5610 F DEBUG   : pid: 5376, tid: 5437, name: NetworkService  >>> org.bromite.bromite <<<
12-05 20:41:36.098  5610  5610 F DEBUG   : uid: 10137
12-05 20:41:36.098  5610  5610 F DEBUG   : signal 8 (SIGFPE), code 1 (FPE_INTDIV), fault addr 0xb5c08d57
12-05 20:41:36.098  5610  5610 F DEBUG   :     eax 00000000  ebx b9c686cc  ecx d5f92e80  edx 00000000
12-05 20:41:36.098  5610  5610 F DEBUG   :     edi c01c8180  esi 00000002
12-05 20:41:36.098  5610  5610 F DEBUG   :     ebp 00000000  esp bdcc06e0  eip b5c08d57
12-05 20:41:36.098  5610  5610 F DEBUG   : 
12-05 20:41:36.098  5610  5610 F DEBUG   : backtrace:
12-05 20:41:36.098  5610  5610 F DEBUG   :       #00 pc 00888d57  /data/app/org.bromite.bromite-1G0WIf1oVRc_8HSWcIaOBA==/base.apk!libchrome.so (offset 0xc7c000) (BuildId: 0119dba0b99e819a14a59e9571338dec88991283)

[AnkS4]

Crash after switching on DoH:

https://del.dog/mopesinazu.txt

[csagan5]

Fixed in 78.0.3904.130