Sanitize world id input to TestRunnerForSpecificView::SetIsolatedWorldInfo

Fuzzers might pass in a value that makes us CHECK

Bug: 953402
Change-Id: I27fd7b6f65eb6b16b5ab612525afda11dd2c55fd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1670113
Auto-Submit: Nate Chapin <japhet@chromium.org>
Commit-Queue: Mike West <mkwst@chromium.org>
Reviewed-by: Mike West <mkwst@chromium.org>
Cr-Commit-Position: refs/heads/master@{#671528}

content/shell/test_runner/test_runner_for_specific_view.cc

@@ -36,6 +36,7 @@
 #include "gin/wrappable.h"
 #include "third_party/blink/public/mojom/frame/find_in_page.mojom.h"
 #include "third_party/blink/public/platform/web_data.h"
+#include "third_party/blink/public/platform/web_isolated_world_ids.h"
 #include "third_party/blink/public/platform/web_isolated_world_info.h"
 #include "third_party/blink/public/platform/web_point.h"
 #include "third_party/blink/public/platform/web_url.h"
@@ -625,6 +626,8 @@ void TestRunnerForSpecificView::SetIsolatedWorldInfo(
     int world_id,
     v8::Local<v8::Value> security_origin,
     v8::Local<v8::Value> content_security_policy) {
+  if (world_id >= blink::IsolatedWorldId::kEmbedderWorldIdLimit)
+    return;
   if (!security_origin->IsString() && !security_origin->IsNull())
     return;