blacklist Chromium PDF Viewer

[LaurenWags]

Description

Per #1375 (comment) Chromium PDF Viewer should be blacklisted.

Steps to Reproduce

1. Remove any profile data.
2. Launch beta version with/Applications/Brave\ Browser\ Beta.app/Contents/MacOS/Brave\ Browser\ Beta --show-component-extension-options
3. Navigate to chrome://extensions

Actual result:

Chromium PDF Viewer is displayed

Expected result:

Chromium PDF Viewer should not be used

Reproduces how often:

easily

Brave version (chrome://version info)

Brave	0.55.10 Chromium: 70.0.3538.22 (Official Build) beta(64-bit)
Revision	ac9418ba9c3bd7f6baaffa0b055dfe147e0f8364-refs/branch-heads/3538@{#468}
OS	Mac OS X

Reproducible on current release:

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

Website problems only:

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

Additional Information

#1375
#1376

[bbondy]

Note when QA'ing this, it will show in the list but you can't turn it on. It will be blacklisted / turned off.

[kjozwiak]

Thanks for the quick fix @bbondy 👍

[LaurenWags]

Verified passed with

Brave	0.55.11 Chromium: 70.0.3538.35 (Official Build) beta(64-bit)
Revision	28dcb499844fa40c28d5f62e337876cb936f79f5-refs/branch-heads/3538@{#678}
OS	Mac OS X

• per blacklist Chromium PDF Viewer #1386 (comment) verified that Chromium PDF Viewer is displayed in the list but is unable to be turned on
  

Verification passed on

Brave	0.55.11 Chromium: 70.0.3538.35 (Official Build) beta (64-bit)
Revision	28dcb499844fa40c28d5f62e337876cb936f79f5-refs/branch-heads/3538@{#678}
OS	Windows 7

Verification Passed on

Brave	0.55.12 Chromium: 70.0.3538.45 (Official Build) beta (64-bit)
Revision	cbdc32e4334458954e9def214d7e5fa1ca1960eb-refs/branch-heads/3538@{#830}
OS	Linux