Fix error noise on browser tab close

[kycutler]

[vs-code-engineering]

📬 CODENOTIFY

The following users are being notified based on files changed in this PR:

@jruales

Matched files:

• src/vs/workbench/contrib/browserView/common/browserEditorInput.ts
• src/vs/workbench/contrib/browserView/electron-browser/browserEditor.ts

[Copilot]

Pull request overview

Reduces Integrated Browser “error noise” during tab close by tightening model lifecycle handling between the editor pane and its input/model, so workbench UI code doesn’t keep interacting with a disposed browser view.

Changes:

• Clear BrowserEditor’s _model reference when the underlying IBrowserViewModel begins disposing.
• Reorder BrowserEditorInput.dispose() to emit onWillDispose before tearing down the browser view model.
• Remove the now-unneeded _resourceBeforeDisposal snapshot logic from BrowserEditorInput.resource.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/vs/workbench/contrib/browserView/electron-browser/browserEditor.ts	Drops the editor’s reference to the model on model disposal to avoid late calls into a disposed browser view.
src/vs/workbench/contrib/browserView/common/browserEditorInput.ts	Ensures onWillDispose is emitted before disposing the model, and simplifies resource by removing the disposal snapshot.