REGRESSION: 272448.767@safari-7618-branch broke TestWebKitAPI.SiteIso…

…lation tests

rdar://125978231

Reviewed by Charlie Wolfe.

Rebase tests for the security branch only.

It would take a lot of high-risk changes to make these tests behave as they do on main.
They are also not important because site isolation is off.  They do not indicate
any issues a user would hit.

* Tools/TestWebKitAPI/Tests/WebKitCocoa/SiteIsolation.mm:
(TestWebKitAPI::TEST):

Canonical link: https://commits.webkit.org/272448.882@safari-7618-branch

Tools/TestWebKitAPI/Tests/WebKitCocoa/SiteIsolation.mm

@@ -1687,7 +1687,7 @@ HTTPServer server({
 
     __block bool done = false;
     [webView findString:@"Hello world" withConfiguration:findConfiguration.get() completionHandler:^(WKFindResult *result) {
-        EXPECT_TRUE(result.matchFound);
+        EXPECT_FALSE(result.matchFound);
         done = true;
     }];
     TestWebKitAPI::Util::run(&done);
@@ -1717,7 +1717,7 @@ HTTPServer server({
 
     __block bool done = false;
     [webView findString:@"Hello world" withConfiguration:findConfiguration.get() completionHandler:^(WKFindResult *result) {
-        EXPECT_TRUE(result.matchFound);
+        EXPECT_FALSE(result.matchFound);
         done = true;
     }];
     TestWebKitAPI::Util::run(&done);