* reland "Refactors global key duplication detection (#46183)"

This reverts commit d2b66dbf.

* fix test

This reverts commit 46ccd086.

https://github.com/flutter/engine/compare/74d07b5f6b4f...804dca62a17c

git log 74d07b5f6b4f..804dca62a17c --first-parent --oneline
2020-01-31 yjbanov@google.com Use bundled Roboto in all tests (flutter/engine#16218)
2020-01-31 gw280@google.com Revert "Migrate flutter_runner from flutter_runner::{Thread,Loop} to fml::{Thread,MessageLoop} (#15118)" (flutter/engine#16277)
2020-01-31 skia-flutter-autoroll@skia.org Roll src/third_party/skia 36c0521d57de..6305b2f8342a (8 commits) (flutter/engine#16272)
2020-01-31 jason-simmons@users.noreply.github.com Revert "[web] Correct getPositionForOffset for multi-line paragraphs (#16206)" (flutter/engine#16268)
2020-01-30 stuartmorgan@google.com Fix Windows file checks of unicode paths (flutter/engine#16105)
2020-01-30 iska.kaushik@gmail.com [fuchsia] Fix the import for dart_api.h (flutter/engine#16269)
2020-01-30 iska.kaushik@gmail.com [fuchsia] SceneHostBindings are no longer thread locals (flutter/engine#16262)
2020-01-30 gw280@google.com Pass through invoker.resources in fuchsia_test_archive (flutter/engine#16265)
2020-01-30 matthew-carroll@users.noreply.github.com Notify PlatformViewsController within FlutterEngine when a hot restart occurs. (#48518) (flutter/engine#16230)
2020-01-30 skia-flutter-autoroll@skia.org Roll src/third_party/dart fc3af737c759..162d6c5634a0 (209 commits) (flutter/engine#16261)
2020-01-30 skia-flutter-autoroll@skia.org Roll src/third_party/skia d1be5d64f8a7..36c0521d57de (13 commits) (flutter/engine#16260)
2020-01-30 mouad.debbar@gmail.com [web] Correct getPositionForOffset for multi-line paragraphs (flutter/engine#16206)
2020-01-30 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from -mGIA... to 93K0d... (flutter/engine#16257)


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This reverts commit 25f798a1.

https://github.com/flutter/engine/compare/74d07b5f6b4f...e5209202fb00

git log 74d07b5f6b4f..e5209202fb00 --first-parent --oneline
2020-01-30 skia-flutter-autoroll@skia.org Roll src/third_party/dart fc3af737c759..162d6c5634a0 (209 commits) (flutter/engine#16261)
2020-01-30 skia-flutter-autoroll@skia.org Roll src/third_party/skia d1be5d64f8a7..36c0521d57de (13 commits) (flutter/engine#16260)
2020-01-30 mouad.debbar@gmail.com [web] Correct getPositionForOffset for multi-line paragraphs (flutter/engine#16206)
2020-01-30 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from -mGIA... to 93K0d... (flutter/engine#16257)


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This reverts commit 340b193f.

Initial web benchmark harness and 3 benchmarks

This PR fixes #49647 by changing DiagnosticableMixin.toDiagnosticsNode and other things to accept DiagnosticableMixin instead of requiring Diagnosticable.

This reverts commit 9d4a35ba because it appears to break

the gradle_non_android_plugin_test.

The test hangs on iOS 13 device, see https://github.com/flutter/flutter/issues/49635.

Now that the new schema is supported on the stable channel, and the old
schema is considered legacy, the template should always create plugins
using the new schema.

https://github.com/flutter/engine/compare/f6526c0cf8a3...74d07b5f6b4f

git log f6526c0cf8a3..74d07b5f6b4f --first-parent --oneline
2020-01-30 skia-flutter-autoroll@skia.org Roll src/third_party/skia 8f44c3504ca6..d1be5d64f8a7 (4 commits) (flutter/engine#16251)
2020-01-30 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from MK0YU... to yissX... (flutter/engine#16250)


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Fixes #46150 by catching both the delete and backspace keys, rather than just the delete key.

Fixes the focus handling when popping pages so that when multiple pages are popped, the focus doesn't try to focus the interstitial pages.

https://github.com/flutter/engine/compare/6061b804e359...f6526c0cf8a3

git log 6061b804e359..f6526c0cf8a3 --first-parent --oneline
2020-01-30 skia-flutter-autoroll@skia.org Roll src/third_party/skia 25bcd6a6215e..8f44c3504ca6 (2 commits) (flutter/engine#16243)
2020-01-30 skia-flutter-autoroll@skia.org Roll src/third_party/skia 24ed75db12ba..25bcd6a6215e (5 commits) (flutter/engine#16234)
2020-01-30 chinmaygarde@google.com Make output of run_tests.py easier to understand. (flutter/engine#16229)
2020-01-30 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from c3sk5... to MK0YU... (flutter/engine#16221)
2020-01-30 chinmaygarde@google.com Remove buggy test to check if tasks can be posted on all native threads recursively from the emebdder. (flutter/engine#16214)
2020-01-30 chris@bracken.jp Correct the Fuchsia licenses golden file (flutter/engine#16215)
2020-01-30 skia-flutter-autoroll@skia.org Roll src/third_party/skia a2a0c8a2c475..24ed75db12ba (12 commits) (flutter/engine#16216)


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The stocks example app is outdated and deprecated, but we still use it for some benchmark tests. Moving it into the benchmarks directory to indicate its status.

6061b804e In the test harness, don’t attempt to load AOT snapshots from non-existent dylibs. (flutter/engine#16210) (#49758)


https://github.com/flutter/engine/compare/6007c17fd246...6061b804e359

git log 6007c17fd246..6061b804e359 --first-parent --oneline
2020-01-29 chinmaygarde@google.com In the test harness, don’t attempt to load AOT snapshots from non-existent dylibs. (flutter/engine#16210)


If this roll has caused a breakage, revert this CL and stop the roller
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* ee297aa69 Reland "Engine/LibTxt/dart:ui impl of TextHeightBehavior #15087" (flutter/engine#16155)

* 6007c17fd Roll src/third_party/skia dc49b0ca9816..a2a0c8a2c475 (4 commits) (flutter/engine#16197)

https://github.com/flutter/engine/compare/020222ddd021...4a55b4fd2500

git log 020222ddd021..4a55b4fd2500 --first-parent --oneline
2020-01-29 abrush21@users.noreply.github.com Modifies accessibility bridge to populate new node fields in semantic… (flutter/engine#15116)
2020-01-29 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from 2rLoq... to -mGIA... (flutter/engine#16195)


If this roll has caused a breakage, revert this CL and stop the roller
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