ContentDiffRequest (@Nullable Project project, @NotNull VirtualFile leftFile, @NotNull VirtualFile baseFile, @NotNull VirtualFile rightFile) { DiffContent content1 = myContentFactory.create(project, leftFile); DiffContent content2 = myContentFactory.create(project, baseFile); DiffContent content3 = myContentFactory.create(project, rightFile); String title1 = getContentTitle(leftFile); String title2 = getContentTitle(baseFile); String title3 = getContentTitle(rightFile); return new SimpleDiffRequest(null, content1, content2, content3, title1, title2, title3); }