Chrome Version: 67.0.3393.4 (Official Build) Revision 1c8c7bb130996ac73fdf93473d13849dbcba5240-refs/branch-heads/3393@{#6} 32/64-bit.
OS: Windows(7,8,8.1,10), Mac(10.12.6, 10.13.1, 10.13.5), Linux(14.04 LTS).

What steps will reproduce the problem?
1. Launch chrome, open DevTools and navigate to 'Request blocking' section in Console drawer.
2. Add the pattern and click on the checkbox of added pattern to disable it (disable all the added pattern check-boxes).
3. Now observe the 'Enable request blocking' checkbox. 

Actual: 'Enable request blocking' checkbox doesn’t get disable automatically when none of the added pattern checkbox is enabled.
Expected: 'Enable request blocking' checkbox should get disabled automatically when none of the added pattern checkbox is enabled.

This is a non-regression issue, seen from M-60 series.

NOTE: This issue is also reproducible on M-65 Stable (build # 65.0.3325.181), M-66 Beta (build # 66.0.3359.81) and M-67 Canary (build # 67.0.3394.0)

Kindly review the attached screen-cast for reference.
 

Deleted: Actual behavior.mov 7.2 MB

	Actual behavior.mov 7.2 MB View Download