6362: Issue #4287: Refactor feature-media to use browser-state instead of browser-session. r=csadilek a=pocmo

This is finally ready. :)

With this I completely removed anything related to media from `browser-session` and moved it to `browser-state`. This required a bigger refactoring of `feature-media`. The state machine is gone and that functionality is now provided by a middleware that can be installed on `BrowserStore`.

Note that this also introduces a `Dispatchers` object in `support-base` for creating AC and app specific dispatchers.
Co-authored-by: Sebastian Kaspari <s.kaspari@gmail.com>

6413: Import strings from android-l10n. r=jonalmeida a=mozilla-l10n-automation-bot

n/t
Co-authored-by: Mozilla L10n Automation Bot <release+l10n-automation-bot@mozilla.com>

6406: Add api for customizing the ui of the AddonPermissionsAdapter and AddonsManagerAdapter r=psymoon a=Amejia481

Relate Fenix issue https://github.com/mozilla-mobile/fenix/issues/8520

Co-authored-by: Arturo Mejia <arturomejiamarmol@gmail.com>

AddonsManagerAdapter

6393: Closes #6317: Prevent inserting duplicate record into content resolver r=Amejia481 a=csadilek

OK, this hole was deep :). The cause of this crash is that we were unconditionally inserting into the content resolver which may already have a row / record of the download URI: https://github.com/mozilla-mobile/android-components/issues/6317#issuecomment-601119812



This can happen if a download fails or gets cancelled before we write the file. We will have a unique file name generated based on existing files, but also need to check if we have a record of the file in the resolver. If so, use it, otherwise create a new record.

I've tried for a few hours to write a meaningful test for this, but there are simply too many static methods involved here and the resulting refactoring was terrible: `ContentUris.withAppendedId`, `MediaStore.setIncludePending`, `MediaStore.Downloads.getContentUri` etc. That's properly the reason we don't have an existing test for this method :(

This also makes sure we now won't crash if for some reason there's another problem inserting into the content resolver, but fail the download instead.
Co-authored-by: Christian Sadilek <christian.sadilek@gmail.com>

6404:  GeckoView update (nightly) (20200326-140657) r=Amejia481 a=MickeyMoz
Co-authored-by: MickeyMoz <sebastian@mozilla.com>

6403:  GeckoView update (beta) (20200326-140654) r=Amejia481 a=MickeyMoz
Co-authored-by: MickeyMoz <sebastian@mozilla.com>

6381: Issue #5529: Restore engine state of tabs in tab collections. r=csadilek a=pocmo

Changes here:

- `TabCollection` and `Tab` return a `Snapshot.Item` instead of only a `Session`
- `SessionManager.add()` allows to pass in an `EngineSessionState`
- `SessionManager.restore()` helper functions to restore a `Tab`/`TabCollection`


6391: Closes #6288: Update docs for local development [ci skip] r=Amejia481 a=jonalmeida



6398: Fix for #6155 - Back button from migration complete notification routes back to migration screen r=Amejia481 a=jonalmeida
Co-authored-by: Sebastian Kaspari <s.kaspari@gmail.com>
Co-authored-by: Jonathan Almeida <jalmeida@mozilla.com>
Co-authored-by: Sparky93 <andrei.a.lazar528@gmail.com>

6402:  Docs update (20200326-120737) [ci skip] r=pocmo a=MickeyMoz
Co-authored-by: MickeyMoz <sebastian@mozilla.com>

6342: Bug 1589684 - Let taskgraph handle params["head_tag"] r=tomprince a=JohanLorenzo
Co-authored-by: Johan Lorenzo <jlorenzo@mozilla.com>

6396: Closes #6394 - Add warm-up API to places and logins storage layers r=jonalmeida a=grigoryk

This allows consumers to ensure that underlying database connections are fully established.
After `warmUp` is called, there should be no additional overhead upon first access to the storage.
Co-authored-by: Grisha Kruglov <gkruglov@mozilla.com>

This allows consumers to ensure that underlying database connections are fully established.
After `warmUp` is called, there should be no additional overhead upon first access to the storage.

6395: Closes #6354 - Take Lazy references to storage in FennecMigrator r=jonalmeida a=grigoryk

This is a follow-up to https://github.com/mozilla-mobile/android-components/issues/6304

, in which I forget that FennecMigrator exists.
Co-authored-by: Grisha Kruglov <gkruglov@mozilla.com>

migration screen

Tapping the migration complete notification would cause activities stack to be
polluted with the migration progress activity which means that popping an
activity from the onboarding screen would lead back to the migration progress
activity, rather than finishing the app instance.

Placing the FLAG_ACTIVITY_CLEAR_TOP flag to the migration complete
notification's intent will ensure us that, once in the onboarding screen, we
can never go back to the migration one, by clearing everything that is at the
top.

6306: Closes #6194: Re-subscribe for push on subscription change events r=psymoon a=jonalmeida
Co-authored-by: Jonathan Almeida <jalmeida@mozilla.com>

6392: Import strings from android-l10n. r=psymoon a=mozilla-l10n-automation-bot

n/t
Co-authored-by: Mozilla L10n Automation Bot <release+l10n-automation-bot@mozilla.com>

6376: Closes #6369. Add ThrowProperty to support-test r=jonalmeida a=levimatheri
Co-authored-by: levimatheri <levimatheri@gmail.com>

6390: Closes #6287: Update Not Yet Supported caption string r=psymoon a=psymoon
Co-authored-by: Simon Chae <chaesmn@gmail.com>

6374: For #5866: Don't crash when failed to launch new window request in custom tab r=jonalmeida a=rocketsroger



6387: Fixes #6386 - Import v9.0.0 sources r=jonalmeida a=miketaylr

https://github.com/mozilla-mobile/android-components/issues/6386
https://bugzilla.mozilla.org/show_bug.cgi?id=1624694

Co-authored-by: Roger Yang <royang@mozilla.com>
Co-authored-by: Mike Taylor <miket@mozilla.com>

https://github.com/mozilla-mobile/android-components/issues/6386
https://bugzilla.mozilla.org/show_bug.cgi?id=1621062

6244: For #6242: Updates nestedScrolling handling r=pocmo a=sblatz



6343: Fix build of ui-test docker image r=rpappalax a=JohanLorenzo
Co-authored-by: Sawyer Blatz <sdblatz@gmail.com>
Co-authored-by: Johan Lorenzo <jlorenzo@mozilla.com>

6378:  Docs update (20200325-120636) [ci skip] r=pocmo a=MickeyMoz
Co-authored-by: MickeyMoz <sebastian@mozilla.com>

6382:  GeckoView update (beta) (20200325-140640) r=Amejia481 a=MickeyMoz



6383:  GeckoView update (nightly) (20200325-140815) r=Amejia481 a=MickeyMoz
Co-authored-by: MickeyMoz <sebastian@mozilla.com>