Bug 1787588 - Fix some out-of-date URLs in comments & docs r=chutten DONTBUILD

Differential Revision: https://phabricator.services.mozilla.com/D155774

toolkit/components/telemetry/core/Telemetry.h

@@ -22,7 +22,7 @@
  * points and gives access to the data.
  *
  * For documentation on how to add and use new Telemetry probes, see:
- * https://developer.mozilla.org/en-US/docs/Mozilla/Performance/Adding_a_new_Telemetry_probe
+ * https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/start/adding-a-new-probe.html
  *
  * For more general information on Telemetry see:
  * https://wiki.mozilla.org/Telemetry

toolkit/components/telemetry/docs/internals/tests.rst

@@ -15,7 +15,7 @@ Mochitest
 ---------
 :Location: ``t/c/t/t/browser/``
 :Language: Javascript
-  (`mochitest <https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Mochitest>`__)
+  (`mochitest <https://firefox-source-docs.mozilla.org/testing/mochitest-plain>`__)
 
 This test harness runs nearly the entire Firefox and gives access to multiple tabs and browser chrome APIs.
 It requires window focus to complete correctly,
@@ -68,7 +68,7 @@ xpcshell
 --------
 :Location: ``t/c/t/t/unit``
 :Language: Javascript
-  (`xpcshell <https://developer.mozilla.org/en-US/docs/Mozilla/QA/Writing_xpcshell-based_unit_tests>`__)
+  (`xpcshell <https://firefox-source-docs.mozilla.org/testing/xpcshell>`__)
 
 This test harness uses a stripped-down shell of the Firefox browser to run privileged Javascript.
 It should be used to write unit tests for the Javascript API and app-level logic of Firefox Telemetry.
@@ -86,8 +86,8 @@ Instrumentation Tests
 ---------------------
 :Location: Various
 :Language: Usually Javascript
-  (`xpcshell <https://developer.mozilla.org/en-US/docs/Mozilla/QA/Writing_xpcshell-based_unit_tests>`__ or
-  `mochitest <https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Mochitest>`__)
+  (`xpcshell <https://firefox-source-docs.mozilla.org/testing/xpcshell>`__ or
+  `mochitest <https://firefox-source-docs.mozilla.org/testing/mochitest-plain>`__)
 
 In addition to the tests of Firefox Telemetry,
 other code owners have written tests that ensure that their code records appropriate values to Telemetry.