Remove opener URLs from CreateNewWindowParams.

content/browser/security_exploit_browsertest.cc

Index: content/browser/security_exploit_browsertest.cc
diff --git a/content/browser/security_exploit_browsertest.cc b/content/browser/security_exploit_browsertest.cc
index d159670552a378f490e83c2296e981a5901f8276..cf003bfe0f300567b765588e748d093cad00b205 100644
--- a/content/browser/security_exploit_browsertest.cc
+++ b/content/browser/security_exploit_browsertest.cc
@@ -268,7 +268,8 @@ IN_PROC_BROWSER_TEST_F(SecurityExploitBrowserTest,
 
   RenderFrameHostImpl* opener =
       static_cast<RenderFrameHostImpl*>(pending_rvh->GetMainFrame());
-  mojom::CreateNewWindowParamsPtr params;
+  mojom::CreateNewWindowParamsPtr params = mojom::CreateNewWindowParams::New();
+  params->target_url = GURL("about:blank");
   opener->CreateNewWindow(std::move(params),
                           base::Bind([](mojom::CreateNewWindowReplyPtr) {}));
   // If the above operation doesn't cause a crash, the test has succeeded!