src/vs/workbench/contrib/files/browser/views/openEditorsView.ts/OpenEditorsView/updateDirtyIndicator
class OpenEditorsView:	private updateDirtyIndicator(workingCopy?: IWorkingCopy): void {
		if (workingCopy) {
			const gotDirty = workingCopy.isDirty();
			if (gotDirty && !(workingCopy.capabilities & WorkingCopyCapabilities.Untitled) && this.filesConfigurationService.getAutoSaveMode() === AutoSaveMode.AFTER_SHORT_DELAY) {
				return; // do not indicate dirty of working copies that are auto saved after short delay
			}
		}

		let dirty = this.workingCopyService.dirtyCount;
		if (dirty === 0) {
			this.dirtyCountElement.classList.add('hidden');
		} else {
			this.dirtyCountElement.textContent = nls.localize('dirtyCounter', "{0} unsaved", dirty);
			this.dirtyCountElement.classList.remove('hidden');
		}
	}