Log onto Moodle under admin privileges using Chrome.

When prompted by Chrome to remember the password, select 'YES'.

Create an LTI external tool: Site admin->pluggins->activity modules->LTI
Add An External Tool Configuration I fill out: Tool Name, Tool Base URL, Consumer Key, Shared Secret.
Save changes

Select Course
Turn on Editing
Add an activity or resource
Select External Tool
Add

Fill in : Activity Name, Select External Tool type, Save.

Login into Moodle via Google Chrome
Turn on Editing
Select Edit Setting of the already created external tool.
Save

The external tool no longer works.

Select Edit Settings of the same already created external tool
select show more
The Consumer Key and Shared Secret are auto filled with my username and password.
Causing the external tool not to link with the select External Tool has a configured consumer key and shared secret that was done in add external tool configuration.

Suggested fix:
Add attribute
autocomplete="off"
to the HTML that creates the 'Consumer Key' text box and the 'Shared Secret' text box so Chrome doesn't auto populate those.