Adding a navigation policy for the "presentation" feature in window.open()

Source/core/page/CreateWindow.cpp

Index: Source/core/page/CreateWindow.cpp
diff --git a/Source/core/page/CreateWindow.cpp b/Source/core/page/CreateWindow.cpp
index 1a76d5740f7b092ad79f05452b9067862089628f..76cbce4fa76cdc4c260a246909ce9d8b534f12ef 100644
--- a/Source/core/page/CreateWindow.cpp
+++ b/Source/core/page/CreateWindow.cpp
@@ -30,6 +30,7 @@
 #include "core/dom/Document.h"
 #include "core/frame/Frame.h"
 #include "core/loader/FrameLoadRequest.h"
+#include "core/loader/NavigationPolicy.h"
 #include "core/page/Chrome.h"
 #include "core/page/ChromeClient.h"
 #include "core/page/Page.h"
@@ -73,7 +74,13 @@ static Frame* createWindow(Frame* openerFrame, Frame* lookupFrame, const FrameLo
     if (!oldPage)
         return 0;
 
-    Page* page = oldPage->chrome().client().createWindow(openerFrame, request, features, policy, shouldSendReferrer);
+    NavigationPolicy navigationPolicy = NavigationPolicyIgnore;
+    for (size_t i = 0; i < features.additionalFeatures.size(); ++i) {
+        if (features.additionalFeatures[i].lower() == "presentation")
+            navigationPolicy = NavigationPolicyPresentationWindow;
+    }
+    Page* page = oldPage->chrome().client().createWindow(openerFrame, request, features, navigationPolicy, shouldSendReferrer);
+
     if (!page)
         return 0;
 
@@ -106,7 +113,7 @@ static Frame* createWindow(Frame* openerFrame, Frame* lookupFrame, const FrameLo
     FloatRect newWindowRect = DOMWindow::adjustWindowRect(page, windowRect);
 
     page->chrome().setWindowRect(newWindowRect);
-    page->chrome().show(policy);
+    page->chrome().show(navigationPolicy);
 
     created = true;
     return frame;