src/vs/editor/browser/services/editorWorkerService.ts/EditorWorkerClient/computeDiff
class EditorWorkerClient:	public computeDiff(original: URI, modified: URI, ignoreTrimWhitespace: boolean, maxComputationTime: number): Promise<IDiffComputationResult | null> {
		return this._withSyncedResources([original, modified], /* forceLargeModels */true).then(proxy => {
			return proxy.computeDiff(original.toString(), modified.toString(), ignoreTrimWhitespace, maxComputationTime);
		});
	}