* 6e5d37609 Roll Dart SDK from 86242db30c23 to 874709e52a99 (1 revision) (flutter/engine#22023)
* 271847481 Roll Dart SDK from 874709e52a99 to a3d902d8598e (1 revision) (flutter/engine#22026)
* b99d94f39 Roll Skia from 1c823674d957 to 2d2f82c00aeb (13 revisions) (flutter/engine#22015)
* c2c74ed70 Roll Dart SDK from 8be6a08153cc to 86242db30c23 (2 revisions) (flutter/engine#22018)
* 3edc16ca4 Roll Dart SDK from 5c59a47beda7 to 902538ea56d5 (2 revisions) (flutter/engine#21978)
* 0747f2f4b [web] Fix 3d transforms for html backend (flutter/engine#21499)
* fa11ee6e2 Fix native constructor of list of zircon handles and remove unused list factory specializations. (flutter/engine#21980)
* 2dc43eee1 Roll Fuchsia Mac SDK from MR_bRfe8I... to pZ9FgVZTK... (flutter/engine#21982)
* 149ef7083 [web] Implement sweep gradient (flutter/engine#21873)
* 79879802e [web] Fix image gap due to svg element without position attribute (flutter/engine#21939)
* 727a9283a Roll Skia from 27f7fe32f49b to ac1ded033136 (15 revisions) (flutter/engine#21984)
* 326157ee7 [null-safety] fix Scene.toImage declaration (flutter/engine#21983)
* 2ef0f4228 Revert "[web] Fix image gap due to svg element without position attribute (#21939)" (flutter/engine#21986)
* e78e405e6 Enable lazy-async-stacks by-default in all modes (Take 4) (flutter/engine#21802)
* 91c81ebfa Fix linking issue (missing wayland-client library) (flutter/engine#21408)
* 40784a061 Roll Fuchsia Linux SDK from dcMRY8S12... to lPMs_KwnU... (flutter/engine#21988)
* 85104696e Roll Skia from ac1ded033136 to a25c0619b5ef (2 revisions) (flutter/engine#21989)
* 7b72ce796 Roll Skia from a25c0619b5ef to 4964300530d3 (2 revisions) (flutter/engine#21990)
* 564bd09cd Roll Skia from 4964300530d3 to 51dc28505fb9 (5 revisions) (flutter/engine#21993)
* eb6f7f874 Roll Dart SDK from 902538ea56d5 to fc82eeed7df3 (1 revision) (flutter/engine#21981)
* 6ce33dd4a [null-safety] fix soundness of Paragraph._addPlaceholder (flutter/engine#21994)
* 3cd70f2cf Reland: Use dispatchKeyEventPreIme, and handle keys sent to InputConnection.sendKeyEvent on Android (flutter/engine#21979)
* a82e917dc [iOS] Fixes leaks of presses key message (flutter/engine#21987)
* 5d4727d68 Roll Skia from 51dc28505fb9 to 1c823674d957 (8 revisions) (flutter/engine#21995)
* 3658bd7ea Revert "Reland: Use dispatchKeyEventPreIme, and handle keys sent to InputConnection.sendKeyEvent on Android (#21979)" (flutter/engine#22004)
* ed53ff19e Roll Dart SDK from fc82eeed7df3 to 8be6a08153cc (1 revision) (flutter/engine#22002)
* 6fdcdd99c Forward font collection APIs to the SkParagraph font collection (flutter/engine#21734)
* 25d8fa5a7 Define SK_VULKAN for clang-tidy runs (flutter/engine#21927)
* 0c7c47724 Revert "[ios] Refactor IOSSurface factory and unify surface creation (#21877)" (flutter/engine#21970)
* ea2aea1c6 Roll Fuchsia Linux SDK from ZJHmp3INU... to dcMRY8S12... (flutter/engine#21976)
* eba7a1c90 Roll Dart SDK from e655b9a3839e to b58cfe5ab24e (1 revision) (flutter/engine#21919)
* 512154980 Roll Dart SDK from e655b9a3839e to b58cfe5ab24e (1 revision) (flutter/engine#21920)
* 977537b03 Roll Skia from 418eda2c599a to f9c7b2803461 (3 revisions) (flutter/engine#21923)
* 5bd7260a1 Enable loading snapshots with sound null safety enabled. (flutter/engine#21820)
* 787b9c537 Break the reference cycle between the surface factory and the external view embedder (flutter/engine#21918)
* 9b752790f Revert "[fuchsia] External view embedder will be shared with platform view (#21850)" (flutter/engine#21924)
* 04bf8791f Add plumbing to grab dart entrypoint args on macOS (flutter/engine#21789)
* b8fd0013a Update FLUTTER_NOLINT uses to include issue link (flutter/engine#21921)
* 869d3c8c7 Set strokeCap, strokeJoin, and strokeMiter when resurrecting Paint (flutter/engine#21926)
* 18357a858 Roll Skia from f9c7b2803461 to f60a76e2ac01 (4 revisions) (flutter/engine#21929)
* 49c35b617 Eliminate unnecessary linter opt-outs (flutter/engine#21935)
* 2df836f6e Require that FLUTTER_NOLINT include issue link (flutter/engine#21922)
* f6b8a50ab Roll Skia from f60a76e2ac01 to be8004d2fb6c (1 revision) (flutter/engine#21936)
* 34832cb78 Roll the process_runner package used by the formatter script (flutter/engine#21937)
* 2874fccbb Roll Dart SDK from b58cfe5ab24e to aaab579579be (1 revision) (flutter/engine#21938)
* cac04c4cf Add FML_UNREACHABLE to declare points in code that should never be reached. (flutter/engine#21941)
* fabcc2de2 Roll Fuchsia Mac SDK from _FaRRt69Z... to XZSNobQCT... (flutter/engine#21944)
* 20d3a0764 Collect logs in the background. (flutter/engine#21828)
* 815a1f386 Roll Dart SDK from aaab579579be to 42a0bf548ea3 (1 revision) (flutter/engine#21946)
* 890f01620 [web] Implement ClipOp.difference (flutter/engine#21901)
* 3ea02776e Roll Dart SDK from 42a0bf548ea3 to 675c7165c071 (1 revision) (flutter/engine#21948)
* 56d3da33b Roll Fuchsia Mac SDK from XZSNobQCT... to 9mMCqUXkF... (flutter/engine#21950)
* 1c35cc641 [null-safety] fix type declaration of Picutre._toImage (flutter/engine#21942)
* e9a43c15b Roll Dart SDK from 675c7165c071 to 5c59a47beda7 (1 revision) (flutter/engine#21952)
* 499a70f5e Restore missing call to RuntimeDelegate.OnRootIsolateCreated (flutter/engine#21953)
* f7da9d687 Roll Fuchsia Mac SDK from 9mMCqUXkF... to MR_bRfe8I... (flutter/engine#21955)
* e66e3f535 Roll Skia from be8004d2fb6c to 27f7fe32f49b (1 revision) (flutter/engine#21956)
* d4ac8e6cb Temporarily disabled tests that were using latin and arabic characters (flutter/engine#21971)
* f854cbbfa Specify the Noto Naskh Arabic font to get consistent results in tests using Arabic characters (flutter/engine#21974)
* 43b618e4b Added keyEvent support for iOS 13.4+ (flutter/engine#20972)
* a6857802b Fix the initialization of AndroidSurfaceFactoryImpl (flutter/engine#21977)
* 895940081 [null-safety] fix types of layer code (flutter/engine#21959)
* 9946be45a FlTextInputPlugin: fix memory leaks (flutter/engine#21879)
* bcc557f1b Add multi-step input method support for Linux (flutter/engine#21897)
* 85b0031f7 Migration to PlatformDispatcher and multi-window (flutter/engine#20496)
* 0d151816c Remove uses of Dart VM bytecode mode from Flutter engine (flutter/engine#21741)
* 8be6cc039 Roll Skia from 88cda17bbeb8 to 61003cde7688 (4 revisions) (flutter/engine#21744)
* a2046aeb6 Revert "fix On iOS, dialog titles are announced twice (#19826)" (flutter/engine#21714)
* 3bd695b18 Roll Skia from 61003cde7688 to 13fc260c7080 (1 revision) (flutter/engine#21746)
* ca250c972 Roll Fuchsia Mac SDK from lqn8xmlDn... to gzhbqRUap... (flutter/engine#21749)
* 7f0e17b67 Roll Skia from 13fc260c7080 to aa64c352b349 (1 revision) (flutter/engine#21752)
* d97e74c7c Roll Fuchsia Linux SDK from EBX49sN_X... to YRTc9YoiB... (flutter/engine#21753)
* 7fc1a0386 Roll Skia from aa64c352b349 to d71dc2d25b8b (1 revision) (flutter/engine#21758)
* a3f3f989a Roll Fuchsia Mac SDK from gzhbqRUap... to _0R2HD4c8... (flutter/engine#21759)
* d4b8d676f Roll Fuchsia Linux SDK from YRTc9YoiB... to Nw5-0_sVF... (flutter/engine#21760)
* 910ce92e6 Roll Fuchsia Mac SDK from _0R2HD4c8... to 82ankF-Ht... (flutter/engine#21762)
* bd03014c2 Roll Fuchsia Mac SDK from 82ankF-Ht... to FFpTJfmj1... (flutter/engine#21768)
* f230fded7 Use buildroot clang for scenario app (flutter/engine#21690)
* 766d68282 Roll Fuchsia Linux SDK from Nw5-0_sVF... to h-DeV4tgE... (flutter/engine#21771)
* cff4ee74a Roll Skia from d71dc2d25b8b to ceb6214a556a (5 revisions) (flutter/engine#21772)
* fd1ba9ccf Ignore analysis warning for doc comment (flutter/engine#21773)
* 978cfd6d5 Roll Skia from ceb6214a556a to 9213e610ed92 (8 revisions) (flutter/engine#21774)
* 106842989 Roll Dart SDK from 06536d68ca0f to e256855d07ba (6 revisions) (flutter/engine#21775)
* 190fd8eb5 Reland "Create root isolate asynchronously (#20142)" (flutter/engine#21747)
* 10ed56318 Roll Skia from 9213e610ed92 to 840e8ea7403e (11 revisions) (flutter/engine#21779)
* e18cd9687 Roll Skia from 840e8ea7403e to ab6e62c131e9 (7 revisions) (flutter/engine#21783)
* 931a04683 Fix documentation build for window changes. (flutter/engine#21780)
* 38d8ebaa4 E2e screenshot tests2 (flutter/engine#21383)
* d912d502d [null-safety] fix build rule to produce sound dill (flutter/engine#21784)
* 05d97932b Extract a TextRange class for selection (flutter/engine#21722)
* c2938d06b Revert "Migration to PlatformDispatcher and multi-window #20496" (flutter/engine#21792)
