Add schedulePageBlock() to navigation scheduler

Source/core/loader/NavigationScheduler.cpp

Index: Source/core/loader/NavigationScheduler.cpp
diff --git a/Source/core/loader/NavigationScheduler.cpp b/Source/core/loader/NavigationScheduler.cpp
index 2d5aa5e9417dce3004f4509d098242b91895caf6..ede54d43ffca2626b48201dae2c72c2dd40e3230 100644
--- a/Source/core/loader/NavigationScheduler.cpp
+++ b/Source/core/loader/NavigationScheduler.cpp
@@ -327,6 +327,12 @@ void NavigationScheduler::scheduleLocationChange(Document* originDocument, const
     schedule(adoptPtr(new ScheduledLocationChange(originDocument, url, referrer, lockBackForwardList)));
 }
 
+void NavigationScheduler::schedulePageBlock(Document* originDocument, const Referrer& referrer)
+{
+    ASSERT(m_frame->page());
+    schedule(adoptPtr(new ScheduledLocationChange(originDocument, SecurityOrigin::urlWithUniqueSecurityOrigin(), referrer, false)));
+}
+
 void NavigationScheduler::scheduleFormSubmission(PassRefPtrWillBeRawPtr<FormSubmission> submission)
 {
     ASSERT(m_frame->page());