This reverts commit 5c1f1d76.

Reverting to see if that fixes flakiness of flutter_gallery__transition_perf_with_semantics in devicelab.

https://github.com/flutter/engine/compare/a549981da706...101b27da7a1b

git log a549981da706..101b27da7a1b --no-merges --oneline
101b27da7 Roll src/third_party/skia f9e824b8e749..cb6b4bde0c2e (7 commits) (flutter/engine#7215)
eff5e6735 Fallback font match caching to fix emoji lag. (flutter/engine#7208)
18a4e33c2 Downloading and installation of dynamic updates on Android (flutter/engine#7207)
8e56b549a Roll src/third_party/skia 5eb29448dfbd..f9e824b8e749 (10 commits) (flutter/engine#7212)

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This reverts commit 46878d84.

* Adds support for floating cursor!

Adds documentation for the stateless widget template, and adds an "imports" section to both templates.

a549981da Roll src/third_party/skia a69b10312977..5eb29448dfbd (1 commits) (flutter/engine#7211) (#25333)


https://github.com/flutter/engine/compare/921b1ccebb8f...a549981da706

git log 921b1ccebb8f..a549981da706 --no-merges --oneline
a549981da Roll src/third_party/skia a69b10312977..5eb29448dfbd (1 commits) (flutter/engine#7211)

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This reverts commit f8f5953d.

* obscureText true defaults to disabling selection

* Tests and comments for selectable text field

* Improve selection docs

* Refactor so that all enableInteractiveSelection params are null by default, delegate to selectionEnabled

* Fix selection param macros

https://github.com/flutter/engine/compare/571f47457c0e...921b1ccebb8f

git log 571f47457c0e..921b1ccebb8f --no-merges --oneline
921b1cceb Roll src/third_party/skia 58fc5d19ad1b..a69b10312977 (3 commits) (flutter/engine#7210)
37bf807a5 Roll src/third_party/skia 17c574a193ad..58fc5d19ad1b (1 commits) (flutter/engine#7209)
0ea994a64 Minor Docs to runtime controller WindowData (flutter/engine#6991)
41dc628d6 Roll src/third_party/skia 340aeda6b3ba..17c574a193ad (8 commits) (flutter/engine#7206)

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* Merge TextField style with global style so that style changes don't override unspecified fields

* Test that a style param is merged with the theme

* Test a few more style properties

* Analysis fix

* Themable elevation on dialogs.

* Added `BackgroundColor` in widget + theme

* Addressing Comments

* Fix test name

* Add debugFillProperties test

* 2bd75ae8b Support querying display refresh rate in engine (flutter/engine#7002)

* 793a08bbf Add .woff file to binary format (flutter/engine#7202)

* daf0ededb Roll src/third_party/skia 6417060b1c23..340aeda6b3ba (41 commits) (flutter/engine#7205)

* 571f47457 Update marked text before selection so textInRange is never called with (flutter/engine#6989)

* Revert "e5195ee47 Remove unnecessary includes of Ganesh headers (flutter/engine#7189) (#25282)"

This reverts commit f198d663.

* Revert "Validate style in TextField (#24587)"

This reverts commit 9a8e2f0c.

* Revert "Allow snippets tool to be run from arbitrary CWDs (#25243)"

This reverts commit 4a110b62.

* Revert "Make doctor output consistent between VS Code/IntelliJ/Android Studio when plugins are missing (#25269)"

This reverts commit e29b023a.

* Revert "Add ipv6 and observatory port support to the attach command. (#24537)"

This reverts commit 9150b3f0.

https://github.com/flutter/engine/compare/abb1d3a6c0b2...e5195ee479c4

git log abb1d3a6c0b2..e5195ee479c4 --no-merges --oneline
e5195ee47 Remove unnecessary includes of Ganesh headers (flutter/engine#7189)

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* Validate style in TextField

* Fix analyze problems

* Use assert and move to top

* Simplified assertion

* Allow snippets tool to be run from arbitrary CWDs

* Drop use of absolute when using Platform.executable (path is not relative, might require PATH resolution)

* canonicalize paths

* Use path.fromUri consistently to resolve file URIs

* Force commit to try to kick Cirrus

* Force commit to kick Cirrus, again

Make doctor output consistent between VS Code/IntelliJ/Android Studio when plugins are missing (#25269)

* Update VS Code validator to match Android Studio

- Now shows a tick (instead of partial) if installed
- Now shows a cross (instead of dot) if extension is not installed

Fixes #22931.

* 31e6861d4  Reland "Compile libcxx and libcxxabi for Android (#6886)" (flutter/engine#7160)

* 648b844b7 Roll buildroot to 4cb5a74c9612b71b917997f46e97da6d1051eab4 (flutter/engine#7194)

* abb1d3a6c Roll buildroot to 8e538639660413490ea9261eee84864005e240f4 (flutter/engine#7195)

* cursor fields on textformfield

* Test pass-through of cursor properties

This sets the favicon for the offline Dash/Zeal docs.

Also, sets up the OpenSearch Description metadata file so that people can create custom search shortcuts for the API docs site.

Fixes #6412