Transitively keep track of an isolated world's children scripts and worlds.

third_party/WebKit/Source/core/loader/NavigationScheduler.cpp

Index: third_party/WebKit/Source/core/loader/NavigationScheduler.cpp
diff --git a/third_party/WebKit/Source/core/loader/NavigationScheduler.cpp b/third_party/WebKit/Source/core/loader/NavigationScheduler.cpp
index f4a962da8b6d02ed5ec02d25a7aef5612297a456..3edce4571bec3615f942c9cff57bf8c19f895ecc 100644
--- a/third_party/WebKit/Source/core/loader/NavigationScheduler.cpp
+++ b/third_party/WebKit/Source/core/loader/NavigationScheduler.cpp
@@ -108,14 +108,22 @@ protected:
         : ScheduledNavigation(delay, originDocument, replacesCurrentItem, isLocationChange)
         , m_url(url)
         , m_shouldCheckMainWorldContentSecurityPolicy(CheckContentSecurityPolicy)
+        , m_originWorld(nullptr)
     {
         if (ContentSecurityPolicy::shouldBypassMainWorld(originDocument))
             m_shouldCheckMainWorldContentSecurityPolicy = DoNotCheckContentSecurityPolicy;
+
+        // Store the world id of the frame requesting the navigation in case it's a 'javascript:...' url.
+        if (v8::Isolate::GetCurrent()->InContext()) {
+            m_originWorld = PassRefPtr<DOMWrapperWorld>(DOMWrapperWorld::current(v8::Isolate::GetCurrent()).originWorld());
+        }
     }
 
     void fire(LocalFrame* frame) override
     {
         OwnPtr<UserGestureIndicator> gestureIndicator = createUserGestureIndicator();
+        // Ensure the origin world gets propagated to the navigation and is reset afterwards.
+        DOMWrapperWorld::OriginWorldScope worldScope(m_originWorld);
         FrameLoadRequest request(originDocument(), m_url, "_self", m_shouldCheckMainWorldContentSecurityPolicy);
         request.setReplacesCurrentItem(replacesCurrentItem());
         request.setClientRedirect(ClientRedirect);
@@ -126,6 +134,7 @@ protected:
 
 private:
     String m_url;
+    RefPtr<DOMWrapperWorld> m_originWorld;
     ContentSecurityPolicyDisposition m_shouldCheckMainWorldContentSecurityPolicy;
 };