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Performance tools for Flutter

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Currently, the inspector contains two trees: **Inspector summary tree** * Labeled as the “Widget Tree” in the UI * This tree shows only widgets that were created in the user’s...

inspector page

This issue tracks fixing the todos left in this PR: https://github.com/flutter/devtools/pull/7906

screen: memory
cleanup
P2

After DevTools is calling `getRootWidgetTree` (added in https://github.com/flutter/flutter/pull/150010) instead of `getRootWidgetSummaryTree` and `getRootWidgetSummaryTreeWithPreviews`, those two APIs can be deprecated and the tests for them can be removed from Flutter. Note:...

inspector page

- [ ] Experiment with kernel transformations - [ ] Prototype library level flag - [x] Get data from G3 about ChangeNotifier usage - [ ] Update [disposable](http://flutter.dev/go/introduce-disposable) - [...

P1

We need to be able to run browser based integration tests to fully test navigation state logic (e.g., jump to source history).

- [x] Update DCM - [x] Make it easier to sync local version with version on bots - [x] Make it easier to upgrade local version - [ ] Adopt...

P1

The DevTools codebase is prepared for building DevTools with dart2wasm thanks to the unblocking work [here](https://github.com/flutter/devtools/issues/6606). There are still a few requirements that we need to meet before moving this...

P1
dart2wasm

___ **DevTools version**: 2.36.0 **Connected Device**: CPU / OS: Web windows Connected app type: Flutter web (debug build) Dart Version: 3.5.0-214.0.dev Flutter Version: 3.23.0-13.0.pre.80 / master Framework / Engine: 5e448f4ce5...

## Steps to Reproduce 1. Set your "flutterMode" on launch.json in vsCode to "profile" 2. Run the application in VSC **Expected results:** I expected to see the Flutter Dev Tools...

performance page
ide: intellij / android-studio
severe: regression
d: devtools
has reproducible steps
found in release: 2.2
found in release: 2.3