Add an identity component for unique/opaque url::Origins.

third_party/WebKit/Source/core/dom/ElementVisibilityObserverTest.cpp

Index: third_party/WebKit/Source/core/dom/ElementVisibilityObserverTest.cpp
diff --git a/third_party/WebKit/Source/core/dom/ElementVisibilityObserverTest.cpp b/third_party/WebKit/Source/core/dom/ElementVisibilityObserverTest.cpp
index 02f03b07793a65bfc272ff501a49f9f93d362576..54d25f4990d329aa6ca110ffc73d304e337d2a40 100644
--- a/third_party/WebKit/Source/core/dom/ElementVisibilityObserverTest.cpp
+++ b/third_party/WebKit/Source/core/dom/ElementVisibilityObserverTest.cpp
@@ -11,6 +11,7 @@
 #include "core/html/HTMLDocument.h"
 #include "core/loader/EmptyClients.h"
 #include "core/testing/DummyPageHolder.h"
+#include "platform/weborigin/SecurityOrigin.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
@@ -73,6 +74,8 @@ TEST_F(ElementVisibilityObserverTest, ObserveElementWithoutDocumentFrame) {
 TEST_F(ElementVisibilityObserverTest, ObserveElementInRemoteFrame) {
   Persistent<RemoteFrame> remoteFrame =
       RemoteFrame::create(new EmptyRemoteFrameClient(), &frameHost(), nullptr);
+  remoteFrame->securityContext()->setReplicatedOrigin(
+      SecurityOrigin::createUnique());
   frameLoaderClient()->setParent(remoteFrame);
 
   Persistent<HTMLElement> element = HTMLDivElement::create(document());