src/vs/platform/userDataSync/common/abstractSynchronizer.ts/AbstractSynchroniser/accept
class AbstractSynchroniser:	async accept(resource: URI, content?: string | null): Promise<ISyncResourcePreview | null> {
		await this.updateSyncResourcePreview(resource, async (resourcePreview) => {
			const acceptResult = await this.getAcceptResult(resourcePreview, resource, content, CancellationToken.None);
			resourcePreview.acceptResult = acceptResult;
			resourcePreview.mergeState = MergeState.Accepted;
			resourcePreview.localChange = acceptResult.localChange;
			resourcePreview.remoteChange = acceptResult.remoteChange;
			return resourcePreview;
		});
		return this.syncPreviewPromise;
	}