bug 1394130 - point osx l10n at the repackage task to avoid re-signing widevine. r=callek

The signing pool is a limited resource. We already have logic to avoid re-signing
widevine if the .sig files are there, and we're taking advantage of that on linux
and windows. OSX was the lone desktop os still pointing at the unsigned bits for
l10n.

We're pointing at repackage instead of signing because the l10n logic expects a dmg.

MozReview-Commit-ID: FtWa4o5s7aJ

--HG--
extra : rebase_source : f704a97293a231d26a4806543f53fc7e83eb9ca9

taskcluster/ci/nightly-l10n/kind.yml

@@ -88,7 +88,7 @@ job-template:
          macosx64-nightly:
             EN_US_PACKAGE_NAME: target.dmg
             EN_US_BINARY_URL:
-               task-reference: https://queue.taskcluster.net/v1/task/<unsigned-build>/artifacts/public/build
+               task-reference: https://queue.taskcluster.net/v1/task/<repackage>/artifacts/public/build
             MAR_TOOLS_URL:
                task-reference: https://queue.taskcluster.net/v1/task/<unsigned-build>/artifacts/public/build/host/bin
          win.*:

taskcluster/taskgraph/transforms/l10n.py

@@ -221,6 +221,10 @@ def setup_nightly_dependency(config, jobs):
             job['dependencies'].update({
                 'signed-build': 'build-signing-{}'.format(job['name']),
             })
+        if job['attributes']['build_platform'].startswith('macosx'):
+            job['dependencies'].update({
+                'repackage': 'repackage-{}'.format(job['name'])
+            })
         if job['attributes']['build_platform'].startswith('win'):
             job['dependencies'].update({
                 'repackage-signed': 'repackage-signing-{}'.format(job['name'])