4385: Closes #4336 Make Media Notification Icons White As Per Android Doc R… r=NotWoods a=rocketsroger

…ecommendation
Co-authored-by: Roger Yang <royang@mozilla.com>

4371: Closes #4292: Add FindResult to browser-state r=pocmo a=csadilek
Co-authored-by: Christian Sadilek <christian.sadilek@gmail.com>

4370: Closes #4298 Add Timestamp Support in lib-crash BreadCrumbs r=pocmo a=rocketsroger
Co-authored-by: Roger Yang <royang@mozilla.com>

4380: Update AndroidX dependencies. r=Amejia481 a=pocmo

Follow-up issues:
* https://github.com/mozilla-mobile/android-components/issues/4379
* https://github.com/mozilla-mobile/android-components/issues/4378

Co-authored-by: Sebastian Kaspari <s.kaspari@gmail.com>

4377: For #1444 Exposed title in GeckoEngineSession - Nightly r=pocmo a=mcarare

Added missing parameter element.title
Co-authored-by: mihai-adrian <mihai.carare.dev@gmail.com>

Follow-up issues:
* https://github.com/mozilla-mobile/android-components/issues/4379
* https://github.com/mozilla-mobile/android-components/issues/4378

4382:  Docs update (20190911-121215) [ci skip] r=pocmo a=MickeyMoz
Co-authored-by: MickeyMoz <sebastian@mozilla.com>

4376: Bump A-S to 0.38.2: no breaking changes r=pocmo a=grigoryk
Co-authored-by: Grisha Kruglov <gkruglov@mozilla.com>

4374: Closes #4290: Add PromptRequest to browser-state r=pocmo a=csadilek

Same as for `Download` and `HitResult` consumables.
Co-authored-by: Christian Sadilek <christian.sadilek@gmail.com>

Added missing parameter element.title

4375: Proper 'matches' permission for webchannel extension manifest r=jonalmeida a=grigoryk

FxA URL was mistyped in #4221 :(

### After merge
- [ ] **Milestone**: Make sure issues closed by this pull request are added to the [milestone](https://github.com/mozilla-mobile/android-components/milestones) of the version currently in development.
- [ ] **Breaking Changes**: If this is a breaking change, please push a draft PR on [Reference Browser](https://github.com/mozilla-mobile/reference-browser

) to address the breaking issues.
Co-authored-by: Grisha Kruglov <gkruglov@mozilla.com>

4362: Add Gitter badge to README [ci skip] r=NotWoods a=jonalmeida
Co-authored-by: Jonathan Almeida <jalmeida@mozilla.com>

3949: Issue #2295 - Convert WebNotification to Notification r=jonalmeida a=NotWoods

Adds a new data class for [web notifications](https://developer.mozilla.org/en-US/docs/Web/API/Notification), and a method to convert it to an Android notification (not to actually send the notification, yet).

### Pull Request checklist
<!-- Before submitting the PR, please address each item -->
- [x] **Quality**: This PR builds and passes detekt/ktlint checks (A pre-push hook is recommended)
- [x] **Tests**: This PR includes thorough tests or an explanation of why it does not
- [ ] **Changelog**: This PR includes [a changelog entry](https://github.com/mozilla-mobile/android-components/blob/master/docs/changelog.md) or does not need one
- [x] **Accessibility**: The code in this PR follows [accessibility best practices](https://github.com/mozilla-mobile/shared-docs/blob/master/android/accessibility_guide.md) or does not include any user facing features

### After merge
- [ ] **Milestone**: Make sure issues closed by this pull request are added to the [milestone](https://github.com/mozilla-mobile/android-components/milestones

) of the version currently in development.
Co-authored-by: Tiger Oakes <toakes@mozilla.com>

4373: PWA: Don't use white nav bar below Oreo r=rocketsroger a=NotWoods

Below Oreo, white navigation bars just look like a giant white rectangle since we can't darken the button colors.
Co-authored-by: Tiger Oakes <toakes@mozilla.com>

4357: Closes #4300: Add lib-crash BreadCrumb Support to README doc r=pocmo a=rocketsroger
Co-authored-by: Roger Yang <royang@mozilla.com>

4366: Issue #4353: MediaStateMachine: Lower state update delay to 100ms. r=Amejia481 a=pocmo

A quick fix that makes it feel less laggy. I did some measurements on various devices. See issue #4353.
Co-authored-by: Sebastian Kaspari <s.kaspari@gmail.com>

4372: Rename isPWA to isInstallable r=Amejia481 a=NotWoods

I'm worried about confusion between a tab that can be installed as a web app vs a session opened as a PWA inside `ExternalAppBrowserFragment`. This hasn't been integrated into Fenix just yet so let's rename it.
Co-authored-by: Tiger Oakes <toakes@mozilla.com>

4367:  Public Suffix List update (20190910-141614) r=pocmo a=MickeyMoz



4368:  GeckoView update (nightly) (20190910-141620) r=pocmo a=MickeyMoz
Co-authored-by: MickeyMoz <sebastian@mozilla.com>

4364:  Docs update (20190910-121409) [ci skip] r=pocmo a=MickeyMoz
Co-authored-by: MickeyMoz <sebastian@mozilla.com>

4344: Enable Gecko scalars exfiltration in engine-gecko r=Dexterp37 a=Dexterp37

This enables exfiltrating Gecko scalars defined in Gecko in products using both engine-gecko and the
Glean SDK.

This needs the new parsers from mozilla/glean_parser#96
Co-authored-by: Alessio Placitelli <alessio.placitelli@gmail.com>

This enables exfiltrating Gecko scalars defined in
Gecko in products using both engine-gecko and the
Glean SDK.

4358: Closes #4348: Empty toolbar after switching from custom tab to browser r=pocmo a=csadilek

Pretty much exactly as described in https://github.com/mozilla-mobile/android-components/issues/4348#issuecomment-529508578

. We need to update our store to move the tab from the custom tab list to the regular tab list. I decided to re-use our existing events (Remove, Add) instead of introducing a new one, as it's technically two different reducers having to handle it.

I've verified that this fixes the issues in Fenix (and r-b).
Co-authored-by: Christian Sadilek <christian.sadilek@gmail.com>