This reverts commit 3597bae6.

This reverts commit 8df0d655.

8882bf3c7 Avoid dereferencing IO manager weak pointers on the UI thread (flutter/engine#13232) (#43045)


git@github.com:flutter/engine.git/compare/8aefcd857508...8882bf3c73f5

git log 8aefcd857508..8882bf3c73f5 --no-merges --oneline
2019-10-18 jason-simmons@users.noreply.github.com Avoid dereferencing IO manager weak pointers on the UI thread (flutter/engine#13232)


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* Replace hard break of Layer.find/All with findAllAnnotations
* Deprecate findAll

See #41880 for history.

8aefcd857 Roll src/third_party/skia f4b3d6b9f3d1..7605c89c00f7 (10 commits) (flutter/engine#13234) (#43039)


git@github.com:flutter/engine.git/compare/ee91881ccc8f...8aefcd857508

git log ee91881ccc8f..8aefcd857508 --no-merges --oneline
2019-10-18 skia-flutter-autoroll@skia.org Roll src/third_party/skia f4b3d6b9f3d1..7605c89c00f7 (10 commits) (flutter/engine#13234)


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ee91881cc Adds Dark Mode support to new Android embedding (this was accidentally missed previously). (flutter/engine#13215) (#43032)


git@github.com:flutter/engine.git/compare/98e6d15663b0...ee91881ccc8f

git log 98e6d15663b0..ee91881ccc8f --no-merges --oneline
2019-10-18 matthew-carroll@users.noreply.github.com Adds Dark Mode support to new Android embedding (this was accidentally missed previously). (flutter/engine#13215)


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git@github.com:flutter/engine.git/compare/dea7150f33fd...98e6d15663b0

git log dea7150f33fd..98e6d15663b0 --no-merges --oneline
2019-10-18 mouad.debbar@gmail.com Preserve stdout colors of subprocesses run by felt (flutter/engine#13209)
2019-10-18 ferhat@gmail.com [web] Fix canvas reuse metrics. Refactor drawVertices code. (flutter/engine#13190)
2019-10-18 jfedor@jfedor.org Add repeatCount to FlutterKeyEvent (flutter/engine#13176)


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git@github.com:flutter/engine.git/compare/7a621a7f7e4f...dea7150f33fd

git log 7a621a7f7e4f..dea7150f33fd --no-merges --oneline
2019-10-18 50856934+nturgut@users.noreply.github.com Adding firefox_installer.dart (flutter/engine#13185)
2019-10-18 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from _G94w... to bdTv5... (flutter/engine#13228)
2019-10-18 skia-flutter-autoroll@skia.org Roll src/third_party/skia b80d31f8cbe2..f4b3d6b9f3d1 (1 commits) (flutter/engine#13229)
2019-10-18 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from KNygX... to SevlL... (flutter/engine#13227)


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This PR adds a new property on RawKeyEventDataAndroid to hold the deviceId from which that event was generated. The deviceId is been sent from the engine on the changes from this PR: flutter/engine#12958

With this, we will be able to identify from where the event came from, adding the ability to support local multiplayer games, with multiple gamepads.

This adds a canRequestFocus and skipTraversal argument to FocusScope and FocusScopeNode, so that a scope can prevent being traversed.

This allows a fix for a problem in the gallery where the focus while traversing the list of items would sometimes appear to disappear, since it would be focusing things that were in the backdrop that were part of the tree, but were not visible.

Related Issues
Fixes #42955

This adds a Focus node to the DropdownButton widget, allowing it to receive keyboard focus, and to show a focus highlight. In addition, I added the ability to activate the dropdown using the "enter" key binding (which is bound to ActivateAction in the WidgetsApp).

Related Issues
Fixes #42646
Fixes #43008
Fixes #42511

git@github.com:flutter/engine.git/compare/508146f0defb...7a621a7f7e4f

git log 508146f0defb..7a621a7f7e4f --no-merges --oneline
2019-10-18 skia-flutter-autoroll@skia.org Roll src/third_party/skia 20eafffd2d2f..b80d31f8cbe2 (4 commits) (flutter/engine#13226)
2019-10-18 skia-flutter-autoroll@skia.org Roll src/third_party/skia da29d70f1a59..20eafffd2d2f (1 commits) (flutter/engine#13223)
2019-10-18 skia-flutter-autoroll@skia.org Roll src/third_party/skia 63a387395751..da29d70f1a59 (11 commits) (flutter/engine#13221)
2019-10-18 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from WpvU_... to _G94w... (flutter/engine#13220)
2019-10-18 chinmaygarde@google.com Specify a human readable reason for an error from the embedder API. (flutter/engine#13218)
2019-10-18 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from _9Uy_... to KNygX... (flutter/engine#13219)
2019-10-17 iska.kaushik@gmail.com Reland ICU update to 64.2 (flutter/engine#13216)
2019-10-17 hterkelsen@users.noreply.github.com Use `window.devicePixelRatio` in the CanvasKit backend (flutter/engine#13192)
2019-10-17 gw280@google.com Re-enable WeakPtr ThreadChecker and fix associated failures (flutter/engine#12257)
2019-10-17 chinmaygarde@gmail.com Re-land "Custom compositor layers must take into account the device pixel ratio."
2019-10-17 chinmaygarde@gmail.com Add trace events around custom compositor callbacks. (flutter/engine#13212)
2019-10-17 skia-flutter-autoroll@skia.org Roll src/third_party/skia 93e853bf2b83..63a387395751 (9 commits) (flutter/engine#13208)
2019-10-17 bkonyi@google.com Roll src/third_party/dart 9b3c7f64d8..a61c775db8 (5 commits)
2019-10-17 chinmaygarde@gmail.com Document //flutter/runtime/dart_snapshot.h (flutter/engine#13196)
2019-10-17 chinmaygarde@gmail.com Revert "Custom compositor layers must take into account the device pixel ratio. (#13193)" (flutter/engine#13211)
2019-10-17 50856934+nturgut@users.noreply.github.com wrap the text in text editing. This was causing a missalingment issue in textarea. (flutter/engine#13207)
2019-10-17 chinmaygarde@google.com Custom compositor layers must take into account the device pixel ratio. (flutter/engine#13193)
2019-10-17 mouad.debbar@gmail.com [web] Environment variable to disable felt snapshot (flutter/engine#13187)
2019-10-17 bkonyi@google.com Roll src/third_party/dart 9e636b5ab4..9b3c7f64d8 (5 commits)
2019-10-17 skia-flutter-autoroll@skia.org Roll src/third_party/skia 0df7697235b4..93e853bf2b83 (1 commits) (flutter/engine#13205)
2019-10-17 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from ek5iQ... to WpvU_... (flutter/engine#13203)
2019-10-17 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from 6j3Gw... to _9Uy_... (flutter/engine#13202)
2019-10-17 skia-flutter-autoroll@skia.org Roll src/third_party/skia 6a19e03047cc..0df7697235b4 (1 commits) (flutter/engine#13200)
2019-10-17 bkonyi@google.com Roll src/third_party/dart 1e3e9ee04c..9e636b5ab4 (9 commits)
2019-10-17 skia-flutter-autoroll@skia.org Roll src/third_party/skia f29cb70281d5..6a19e03047cc (5 commits) (flutter/engine#13198)
2019-10-17 bkonyi@google.com Roll src/third_party/dart f020ce5d23..1e3e9ee04c (12 commits)


If this roll has caused a breakage, revert this CL and stop the roller
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This reverts commit 1781d5c9.