In order to eat the perceived performance costs, we initialize storage
once we're visually complete. This way, we're reducing chances of user performing
a UI action which will trigger storage init and delay said action.
Make sure that we actually lazily initialize our storage layers.
With this patch applied, storage layers (history, logins, bookmarks) will be initialized when first
accessed. We will no longer block GeckoEngine init, for example, on waiting for the logins storage
to initialize (which needs to access the costly securePrefStorage).
Similarly, BackgroundServices init will no longer require initialized instances of the storage
components - references to their "lazy wrappers" will suffice.
In practice, this change changes when our storage layers are initialized in the following ways.
Currently, we will initialize everything on startup. This includes loading our megazord, as well.
With this change, init path depends on if the user is signed-into FxA or not.
If user is not an FxA user:
- on startup, none of the storage layers are initialized
- history storage will be initialized once, whenever:
- first non-customTab page is loaded (access to the HistoryDelegate)
- first interaction with the awesomebar
- history UI is accessed
- bookmarks storage will be initialized once, whenever:
- something is bookmarked, or we need to figure out if something's bookmarked
- bookmarks UI is accessed
- logins storage will be initialized once, whenever:
- first page is loaded with a login/password fields that can be autofilled
- (or some other interaction by GV with the autofill/loginStorage delegates)
- logins UI is accessed
- all of these storages will be initialized if the user logs into FxA and starts syncing data
- except, if a storage is not chosen to be synced, it will not be initialized
If user is an FxA user:
- on startup, none of the storage layers are initialized
- sometime shortly after startup is complete, when a sync worker runs in the background, all storage
layers that are enabled to sync will be initialized.
This change also means that we delay loading the megazord until first access (as described above).
In order to target specific variants of Fenix, we're adding schemas that
are specific that app in order to avoid collisions with the other
variants and with other forks of fenix that may have the same schemas.
The current schema for variants:
- Fenix Nightly: `fenix-nightly://`
- Fenix Beta: `fenix-beta://`
- Everything else: `fenix://`
* Add visual-metrics docker type.
* Add required browsertime toolchain fetches.
* Add browsertime tests for technical and visual metrics.
* Run browsertime tests in a cron task.
* Run visual metrics on all browsertime tests.
* Use spaces instead of tabs, and resolve visual-metric nits.
* Enable browsertime on pull request for testing.
* Restrict PR tests to amazon on browsertime.
* First attempt using multi_dep.
* Add a primary dependency to browsertime.
* Try by not popping.
* Debug prints.
* Make one grouping per browsertime task.
* Try without the multi_dep transform.
* Delete dependent-tasks in visual-metrics transformer.
* Update setuptools installed and copy run-on-tasks-for.
* Use get when getting run-on-tasks-for.
* Add new pinned requirements.
* Try it.
* Set run-on-tasks-for properly.
* Remove print statement.
* Remove single_dep loader, and print statements.
* Remove run-on-tasks-for testing setting.
* Restart testing, and set user to root in visual-metrics Docker.
* Remove testing settings.
* Remove fetch-content from Docker.
* Change attributes grouping method.
* Run all tests as a check.
* Undo testing changes, and fix a bad test name.
This monitor for hot start was intended to be used by FNPRMS to measure
hot start. However, hot start was deprioritized so it's now essentially
unused.
